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AOL Bans Mail From DSL-Hosted Servers

kmself writes "As first reported at linux-elitists by Aaron Sherman, and with a demonstration of the denial at zIWETHEY, AOL has begun blocking mailservers identified with residential DSL lines as an anti-spam measure, apparently heedless of the huge collateral damage this move imposes (and guess who can't send mail to Mom...). This action was unannounced, and has received virtually no coverage, spare an oblique mention at News.com. It also violates SMTP RFCs, as Aaron points out, not to mention the 'good neighbor' conventions of Internet communications. Mail to AOL's postmaster is also bounced -- this is RFC-ignorant. I strongly recommend that as a compensatory measure, non-AOL MTAs be configured to deny all incoming mail from AOL's domain."

149 of 882 comments (clear)

  1. ummmm... by Anonymous Coward · · Score: 2, Funny

    Youve Got(no) Mail!

    1. Re:ummmm... by opti6600 · · Score: 2, Insightful

      wavelengths discovered this one a while ago. As an academic publication, hence receiving zero (0) dollars, we can't very well afford to go ahead and get a static IP, business DSL line, or something as out of this world as a T1.

      I think this is an egregious violation of the community's trust on part of AOL, not to mention that it's ridiculous considering that a LOT of the spam coming at them won't be from home lines, but from established spamwhores like pm0 and others.

      So that's right, a group of 10 students can't send mail to AOL accounts because we can't afford to pay the piper for $300/month. This is RIDICULOUS. It's bad enough that we were forced away from school hosting because they "didn't have enough room" and that we actually needed features for our site, but then the fact that we can't get in touch with half of the MAST Academy student body through the wavelengths Journal email server...that's sad.

      Best regards,
      Jordan

    2. Re:ummmm... by opti6600 · · Score: 2, Insightful

      Yeah, but buddy...we use our own mail server for professional reasons. I can control what my staff sends out and gets in, and also can provide server-side address (LDAP) and other resource support.

      We're even considering moving to Exchange for the feature (we use RHEmS now), but with AOL blocking us, I try to keep a slightly tighter ship, so to speak, in an effort to show what the Avg. Joe can do with their mailserv. I dunno guys, the Net seems to be heading down the tubes faster than we can be righteous, but I hope we don't see this again. Come on! Students having their ALTERNATIVE ENERGY publication's mail serv blocked? It's a shame.

    3. Re:ummmm... by darkonc · · Score: 5, Informative
      One thing that you can do is foreward your email through your ISP. If you're using Sendmail this is done with the smarthost entry:
      # "Smart" relay host (may be null)
      DSmail.MyISP.net
      would forward youre spam (er, email) through the box mail.myISP.net . Most ISPs have a designated server that will allow email forewarding from anybody in their network space.
      --
      Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  2. heh... by di0s · · Score: 4, Funny

    You (don't) have mail!

    1. Re:heh... by ThreeZee · · Score: 3, Informative

      550-The IP address you're using to connect to AOL is either open to the 550-free relaying of e-mail, is serving as an open proxy, or is a dynamic 550-(residential) IP address. AOL cannot accept further e-mail 550-transactions from your server until either your server is closed to free 550-relaying/proxy, or your ISP removes your IP address from their list of 550-dynamic IP addresses. For additional information, please visit 550 http://postmaster.info.aol.com. Comcast IPs are now blocked also. (That's cable!)

    2. Re:heh... by Synocco · · Score: 4, Funny

      At the risk of offending the grammar nazis, shouldn't that be "You've don't got mail!" or maybe "You ain't got no mail!"

  3. I would say.... by Chris_Stankowitz · · Score: 2, Insightful

    to lttile too late. However, this move doesn't even classify as "too little". There has to be some other underlying reason to move to block e-mail for this one group of internet users, because it clearly isn't going to put a dent in the spam that AOL users receive daily. There are MANY service providers that do a much better job at spam blocking than AOL, why is it about them that keeps them from getting it right? Or are they secretly selling e-mail addresses?

    1. Re:I would say.... by Lonath · · Score: 4, Interesting

      There has to be some other underlying reason to move to block e-mail for this one group of internet users,

      <tin-foil-hat>Does any part of AOLTW compete with DSL, like umm cable modems maybe? </tin-foil-hat>

    2. Re:I would say.... by dhunley · · Score: 2, Interesting

      Hate to prove how innefectual your tin hat is, but Ihave a Time-Warner cable modem, and they're blocking my emails as well.

    3. Re:I would say.... by ShannaraFan · · Score: 2, Interesting

      I'm a TWC/Roadrunner customer, and found out two weeks ago that I can no longer send mail to AOL accounts from my server.

    4. Re:I would say.... by njb42 · · Score: 2, Interesting

      But they also block cable modems and dialups. Maybe this is a new story for Slashdot, but AOL's been doing this for at least a few weeks. When I moved my server from a frame-relay connection to Comcast Pro at home, AOL (and several other ISP's) began blocking every single message from my box. Some of the RBL lists also blacklist every IP block that is known to be used for dialup, DSL, or cable. Solution? See if your ISP has an outgoing mail server you can use. AOL blocks my cable modem but not smtp-out.comcast.net.

  4. bouncing mail to postmaster? by fyonn · · Score: 5, Interesting

    I thought that was a requirement of having a domain and you can lose the domain if mail is not accepted or read there? I'd have to check the rfc's but wouldn;t that be a thing, someone taking aol's domain from them because they don;t accept mail for postmaster?

    dave

    1. Re:bouncing mail to postmaster? by Anonymous Coward · · Score: 5, Funny

      It would never happen. That would be like a multi-billion dollar technology company like, oh, say Microsoft, forgetting to renew their domain registration.

      Not in our lifetimes :)

    2. Re:bouncing mail to postmaster? by Anonymous Coward · · Score: 2, Interesting

      No.

      Plenty of people out there have a domain and yet use their.name@their.isp.com as their email address. Nothing wrong with that. Some RFCs *do* state that you have to make all reasonable attempts to receive mail for postmaster@yourdomain.com *if* you run a mail server for that domain, but I've never heard of someone losing a domain over it.

    3. Re:bouncing mail to postmaster? by Zocalo · · Score: 5, Informative
      Nope. It's actually in RFC2821 section 4.5.1 - Minimum Implementation:

      Any system that includes an SMTP server supporting mail relaying or delivery MUST support the reserved mailbox "postmaster" as a case-insensitive local name. This postmaster address is not strictly necessary if the server always returns 554 on connection opening (as described in section 3.1). The requirement to accept mail for postmaster implies that RCPT commands which specify a mailbox for postmaster at any of the domains for which the SMTP server provides mail service, as well as the special case of "RCPT TO:" (with no domain specification), MUST be supported.

      SMTP systems are expected to make every reasonable effort to accept mail directed to Postmaster from any other system on the Internet. In extreme cases --such as to contain a denial of service attack or other breach of security-- an SMTP server may block mail directed to Postmaster. However, such arrangements SHOULD be narrowly tailored so as to avoid blocking messages which are not part of such attacks.

      Note that there are no punitive measures are listed at all, in fact the worst that can happen for bending an RFC is that you will be named and shamed on a site like www.rfc-ignorant.org and maybe be blocked by some system admins. If you actually *break* the protocol on the otherhand, then things will probably get a little more ugly... ;)
      --
      UNIX? They're not even circumcised! Savages!
    4. Re:bouncing mail to postmaster? by ajs · · Score: 5, Informative

      It's worse. Here are the ways that I know AOL is violating RFCs for valid mail traffic:

      1. Mail bound for postmaster@aol.com is not accepted.

      2. They issue a 550 response before the client has a chance to issue a greeting. There are two allowed responses at that point: 554 and 220. 550 is right out.

      3. They disconnect before the client issues a "QUIT" command or times out. Also bogus.

      AOL is playing a game of chicken here to see how much of the net will blacklist them for breaking the RFCs. Once they smell blood in the water because not enough sites care, they can pretty much start writing their own book....

    5. Re:bouncing mail to postmaster? by ajs · · Score: 4, Insightful

      If you actually *break* the protocol on the otherhand, then things will probably get a little more ugly

      Then it's time for it to get ugly. AOL breaks the protocol by issuing at 550 (not a 554) and not leaving the session open until timeout or client issues "QUIT" (you are allowd to say "553 Get bent" to every command issued, but you're not allowed to disconnect).

      Let the blacklisting of AOL begin!

      RFCs aside, though, they're blacklisting folks for getting an address assigned by a protocol. This is arbitrary and foolish. It also eliminates a lot of good mail.

      I'll keep running my mail server, and AOL can keep ignoring me, but I'm going to start sending my friends and familly to AOL's competition, must as I hate to because that's mostly folks like MSN and the regional phone companies.

    6. Re:bouncing mail to postmaster? by alexburke · · Score: 2, Interesting

      WELLLLL actually, after microsoft took over hotmail.com they DID forget to renew. A guy in the Nashville Linux User's Group is actually responsible for purchasing the domain and contacting microsoft to transfer it to them. He was compensated and got a little extra, although not much.. He also got quite a bit of fame, a hardcore linux user saves microsoft's hotmail? heh

      Actually, after much hemming and hawing, Microsoft sent him a cheque (check for you Americans) for US$500. He sold it on eBay... for, IIRC, a little over US$1,000.

    7. Re:bouncing mail to postmaster? by scrain · · Score: 2, Informative

      AOL is also their own registrar, so it's pretty much impossible for them to ever lose their domain. =)

    8. Re:bouncing mail to postmaster? by Transient0 · · Score: 2, Interesting

      ---QUOTE---
      I'll keep running my mail server, and AOL can keep ignoring me, but I'm going to start sending my friends and familly to AOL's competition, must as I hate to because that's mostly folks like MSN and the regional phone companies.
      ---ENDQUOTE---

      I actually had a couple of friends on AOL and when I noticed this a couple of weeks ago, I just told them to stop using their AOL accounts and offered them accounts on my home mailserver, which they both accepted, it being much cooler.

      I reccomend that you offer the same to anyone you can no longer e-mail because of this, and then have them send an e-mail to AOL indicating this policy as the reason they have opted to stop using the service.

    9. Re:bouncing mail to postmaster? by ajs · · Score: 3, Interesting
      A status of 550 should only be sent in response to a command, not to connection.

      Correct, and what's more they issue that 550 ending with "550 Goodbye" and then a connection reset (TCP-"R") packet, which is also in violation of the RFC.

      If you run SpamAssassin, I highly recommend adding:
      score RCVD_IN_RFCI 0 3 0 3
      to your /etc/mail/spamassassin/local.cf. If everyone on the net does this, it won't block AOL's mail (or any other RFC-ignorant site), but it will mean that you have a much lower level of tollerance for spam-like mail from them.

      It's not punative so much as showing them the right way to have solved this problem. Yes, AOL gets a lot of mail; yes, filtering spam out of it is hard; but if they simply weighted blacklists based on how accurate they are (as SA does) and then combined the results of several lists from dynips to rfci to relays with those weights, then they could make an accurate assessment, inform the sites that are blacklisted appropriately (in conformance with the RFC).

      Ultimately, even after issuing that 554, if someone pushes on with a "RCPT To: postmaster@aol.com", they should accept it so that the site has a usable route for delivering mail to assert that the problem has been solved, but that would be a rare occurance if the lists were public and used/maintained correctly.

      Bah.
    10. Re:bouncing mail to postmaster? by ajs · · Score: 2, Insightful

      They are in a position to trump any "standards" because of their saturation.

      No they're not. But if you think that way they are.

      Imagine if you will that AOL had tens of thousands of support calls asking why friends and loved ones were getting bounces. I have a friend at work whose wife was asking why she couldn't send mail to their priest on AOL. Another friend can't get my mail, and I told him to just call AOL until they fix it. I've suggested to other friends and familiy that they switch.

      My hunch is that most of the people that AOL is blocking this way are the technically savvy folks who their friends and familly go to for help. If we all start telling ten or so of our friends to call up AOL and ask why they can't get mail from us.... AOL's spam problems will begin to seem less important.

      Understand this: I'm not suggesting spamming their phones. I'm not suggesting that anyone "get revenge". It's simply a matter that the service, as advertized, is broken. They don't actually accept mail from large chunks of the net, and that needs to get to all of their customers.

      The customers will decide....

  5. No problem by JanneM · · Score: 5, Interesting

    I long ago includedevery mail from aol.com, yahoo.com and hotmail.com in my static spam filters. If anybody with such an account wants to mail me, they need to get in touch with some other account (or other means) first so I can add an excemption to them. To date I have three such excemptions total, all on yahoo.com.

    I can't very well block them further than I already do, in other words.

    --
    Trust the Computer. The Computer is your friend.
    1. Re:No problem by Profane+Motherfucker · · Score: 2, Insightful

      I long ago includedevery mail from aol.com, yahoo.com and hotmail.com in my static spam filters.

      Is this a contest to see who is more ignorant? I'd put you as neck and neck with AOL in this respect.

    2. Re:No problem by Shardis · · Score: 2, Insightful

      Wow, I'm impressed. I just did a count on my junkmail/spam list and fully 100+ of the past 150 unsolicited email messages have come from Yahoo accounts alone. Most of the rest are hotmail or aol, with a few wierd ones thrown in from the "sophisticated" that are forged. I've given up on re-spamming "abuse at yahoo.com" and similar with them all even...

    3. Re:No problem by Zocalo · · Score: 4, Informative
      I've never had a single spam message from those places.

      I've had a few, but in the main, you are correct in saying not much spam comes from aol.com. However, an awful lot of spam *claims* to come from aol.com, even when it actually originates in China, Korea, or some spamhaus in the USA/EU. For this reason refusing mail from aol.com and others may give exceedingly good results with low enough colateral damage to be bearable for some home mail server operators.

      --
      UNIX? They're not even circumcised! Savages!
    4. Re:No problem by Glytch · · Score: 2, Insightful

      The difference is that the previous poster implemented this voluntarily for themself. AOL forced this on their customers.

    5. Re:No problem by afidel · · Score: 2, Informative

      This site lists Korean and Chinese netblocks.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    6. Re:No problem by fmaxwell · · Score: 4, Funny

      I've experienced several cases of spammers using what appears to be my @yahoo.com address to send out spam.

      Serves you right for choosing an address of slutty.coeds@yahoo.com.

    7. Re:No problem by blowdart · · Score: 2, Informative
      See blackholes.us for a suitable dnsBL list for Korea.

      It covers other countries too, as well as some ISPs (including certain ones that don't give a damn like wannadoo and interbusiness.it)

    8. Re:No problem by hoggoth · · Score: 2, Interesting

      I have a sendmail milter running that refuses mail that claims to come from AOL/HOTMAIL/MSN but the server sending the mail doesnt end in aol.com, hotmail.com, or msn.com . This removes all of the forged aol/hotmail/msn mail and cuts out 80% of my spam.

      --
      - For the complete works of Shakespeare: cat /dev/random (may take some time)
    9. Re:No problem by Profane+Motherfucker · · Score: 2, Insightful

      AOL forced this on their customers.

      Forced? Who the fuck is forced? Did AOL suddenly become a state-run organization? If you're going to talk about choice, how about look at the whole issue. People CHOOSE to be customers of AOL. Their continued use of AOL suggests agreement, whether verbal or not, of the policies of AOL. So nobody is forced.

  6. Your Mom by Anonymous Coward · · Score: 5, Funny

    Don't worry, I am on AOL. I will send your mom a note.

  7. About Time by Anonymous Coward · · Score: 2, Interesting

    30% of the spam that comes in to our mailserver is from residential dsl ip's.

    If you are dial up or home dsl you should not be talking diectly to smtp servers anyway you should be sending mail through your provider.

    see: http://njabl.org/ they do exactly this.

    1. Re:About Time by AnotherBlackHat · · Score: 4, Insightful

      30% of the spam that comes in to our mailserver is from residential dsl ip's.

      50% of the spam I receives has an odd number of letters in the domain name,
      but I wouldn't consider filtering based on that.
      A 70% false negative rate is pretty meaningless without knowing the false positive rate as well.
      What percentage of your non-spam email comes from dsl ip's?


      If you are dial up or home dsl you should not be talking diectly to smtp servers anyway you should be sending mail through your provider.


      Sounds like a load of claptrap to me.
      Care to cite an RFC that suggests such a thing?
      How about a good network reason why email should be relayed instead of sent directly?

      -- this is not a .sig
    2. Re:About Time by Wakko+Warner · · Score: 2, Informative

      You do know that you can run spamassassin without running a mailserver.

      Well, now you do, anyway.

      - A.P.

      --
      "Remember when the U.S. had a drug problem, and then we declared a War On Drugs, and now you can't buy drugs anymore?"
    3. Re:About Time by einhverfr · · Score: 3, Interesting

      30% of the spam that comes in to our mailserver is from residential dsl ip's.

      Yet another reason to choose Speakeasy. I have a static IP and I am not blocked by AOL (already tried).

      --

      LedgerSMB: Open source Accounting/ERP
    4. Re:About Time by valdis · · Score: 3, Insightful

      Never invited 15 friends to a barbeque?

      Never tried to announce a new baby to more than 10 people?

      Never sent out "I'm moving, my new snail mail address is..."?

      I guess if you don't have more than 10 friends, you'd never need to bcc more than 10 people. But if that's the case, I feel sorry for you.

    5. Re:About Time by ajs · · Score: 2, Interesting

      A 70% false negative rate is pretty meaningless without knowing the false positive rate as well.
      What percentage of your non-spam email comes from dsl ip's?


      It's actually a pretty high rate of ham (as the SpamAssassin project folks call it) that comes from such addresses. My mail all originates from such an address, and I know several others for whom this is true. The flawed logic of "source x produces much spam, thus eliminating source x will make my life better" has many logical holes in it, as you point out, but that's not stopping AOL :-(

      If you are dial up or home dsl you should not be talking diectly to smtp servers anyway you should be sending mail through your provider.

      Sounds like a load of claptrap to me.
      Care to cite an RFC that suggests such a thing?
      How about a good network reason why email should be relayed instead of sent directly?


      It's not just (as you rightly point out) not in the RFCs, it's about as far as you can get from the intent of them.

      The idea behind SMTP is to make every node on the Net the master of its own communications. You can create a relay and go through it, but that's not required because such a requirement would mean that you're going to have to create a beauracracy around the designation of valid and invalid relays.

      The correct way to deal with the problem is to have an identity that earns or loses respect in the global community. By default your identity is your IP address. Clearly if you have an IP that used to belong to someone else (because you got it via DHCP, your ISP handed you a CIDR block that just freed up because a spammer went out of business, or any other reason) you are going to inherit their rep, so little weight can be put on that. You can then add new layers of identity. For example, digital key verification in the SMTP protocol via TLS (I do this now).

      Once your site has an identity, you can begin to earn or lose the trust of those in the community. Blacklists become trust databases were your IP or key map to 127.0.0.1-255 (a trust value) or 0 for no-match.

      This would be an easy enough thing to develop, and could really help make filtering mail much easier and yet everyone who wants to can maintain a trust database, and anyone who wants to use your trust database can.

      What could be better!

  8. In other news by Anonymous Coward · · Score: 5, Funny

    The United States Postal Service has announced it will stop delivering
    any mail from Florida, due to the large number of mail-order scams
    originating from that state.

  9. Eathlink does this too. by statusbar · · Score: 5, Interesting

    My friend pays for a "static" Ip address on his cable modem to run some private corporate web forums. A few weeks ago, all email notifications from the forums going to anyone hosted at earthlink.net were bouncing - The message is "No email accepted from dynamic IP addresses".
    Both AOL and Earthlink have TONS of subscribers.

    If they both decide to carry on doing this, there is nothing you can do about it.

    Truth is, SMTP sucks. They are only doing this because of all the spam. Yes they are violating RFC's. Too bad...

    --jeff++

    --
    ipv6 is my vpn
    1. Re:Eathlink does this too. by LostCluster · · Score: 4, Insightful

      If this turns into the death of SMTP, I won't cry.

      The fact is, SMTP is based on the flawed assumptions that every e-mail sent is one that the recipient wants to see because nobody would ever spam, and that there's no harm in letting the message travel unencrypted because nobody would ever snoop.

      It's time for reform in the overall e-mail system, the only problem is that there's a huge installed user base that'd be forced to upgrade in order for a new e-mail protocol to work. It's gonna take something silly like this to get out of hand for that to happen.

    2. Re:Eathlink does this too. by kcbrown · · Score: 4, Insightful
      It's time for reform in the overall e-mail system, the only problem is that there's a huge installed user base that'd be forced to upgrade in order for a new e-mail protocol to work. It's gonna take something silly like this to get out of hand for that to happen.

      You don't need a new protocol. The one we have will work fine.

      What people need to do is stop trusting every email connection that's made, and instead insist that every email connection comes from a listed MX.

      This is easy to do: check the MXes for the domain listed in the SMTP "MAIL FROM" command (not to be confused with the "From:" header in the email message itself) and reject the connection if the IP address of the connection doesn't match one of the listed MXes for the domain. If you want to send email from a system that isn't a real MX, list it as a low priority one and block incoming SMTP traffic to that box (something anyone with any brains will be doing anyway), so that all incoming email goes only to the MXes that can handle incoming email.

      End result: it forces spammers to buy a domain (that won't last very long since it'll be blacklisted immediately if it starts sending spam), makes it easy to create useful blacklists that work, and ultimately significantly increases the costs of spamming. And finally provides a way of reliably ignoring open relays (because you can blacklist the domain associated with the open relay).

      And all of this can be done now, with no changes to SMTP required at all.

      So why are we all sitting around on our asses complaining about spam when a viable solution already exists?

      --
      Use 'slashdot stuff' in the subject line in any email you send me if you want to get past the spam filter.
    3. Re:Eathlink does this too. by captaineo · · Score: 2, Interesting

      Actually it might not be necessary to overhaul every SMTP/POP3 client. You could invent a new email system (encrypted, authenticated, whatever) that accepts incoming messages via SMTP and delivers mail via POP3. I'm thinking of a secure "bridge" between the initial SMTP server and the destination POP3 server. Sort of like a VPN, but for email rather than IP packets. This way existing clients could use the system with little or no modification.

      The receiving side would probably be the easiest - the destination server that receives email for you (probably at your ISP) would have to be provided with a private key to decrypt your incoming email. This could be done automatically by your ISP. Naive users and their email clients would just see the unencrypted messages via POP3.

      The outbound side might require modifications to insert special headers in the SMTP message to authenticate yourself to the system (e.g. you could send a digital signature, which the SMTP server would verify against your stored private key).

      This system wouldn't be as secure as end-to-end encryption (anyone with access to your mail server could subvert the private keys), but it would be a heck of a lot better than what we do today, and virtually 100% backwards-compatible with existing mail clients.

      A web interface might be another good way to deliver the next generation of email. Yahoo or MSN could incorporate encryption and authentication without changing anything in their existing web interfaces.

    4. Re:Eathlink does this too. by Blkdeath · · Score: 4, Insightful
      What people need to do is stop trusting every email connection that's made, and instead insist that every email connection comes from a listed MX.

      Which in itself is an RFC violation.

      End result: it forces spammers to buy a domain (that won't last very long since it'll be blacklisted immediately if it starts sending spam), makes it easy to create useful blacklists that work, and ultimately significantly increases the costs of spamming. And finally provides a way of reliably ignoring open relays (because you can blacklist the domain associated with the open relay).

      Give me a Visa card with a $2000 limit and I can own about 200 domains inside of 24 hours. Considering SPAMmers are purchasing $750k houses with the proceeds from their efforts, I'd say that's not a huge problem.

      Now consider what happens when SPAMmers start routinely issuing "MAIL FROM: <kcbrown@sysexperts.com>"

      Oh, wait, they already do that, and implementations like you suggest would only re-double their efforts. I'd rather not find myself at the wraith of people who have the capabilities to send 10 billion messages/month in my name, thanks.

      --
      BD Phone Home!

      Shameless plug. Like you weren't expecting it.

    5. Re:Eathlink does this too. by benb · · Score: 3, Insightful

      > reject the connection if the IP address of the
      > connection doesn't match one of the listed MXes
      > for the domain

      Wrong assumption: incoming SMTP server = outgoing SMTP server. Many large and small organizations use different machines to recieve and send mail via SMTP. In other words, you'll end up rejecting a huge (50-80?) percentage of legitimate mail.

    6. Re:Eathlink does this too. by kcbrown · · Score: 3, Insightful
      Give me a Visa card with a $2000 limit and I can own about 200 domains inside of 24 hours. Considering SPAMmers are purchasing $750k houses with the proceeds from their efforts, I'd say that's not a huge problem.

      The doamins aren't their only expense. Now they also have to pay for their own hosting as well, as well as for the DNS servers that will be authoritative for their domains. They won't be able to make nearly as much use of open relays because the domains associated with any open relays will be blacklisted as quickly as theirs (and the definition of an "open relay" becomes more complicated under my scheme anyway, because an open relay has to either claim that it's sending your email under its domain or it has to be listed as an MX for your domain).

      Those 200 domains aren't going to last you very long...perhaps a couple of weeks once the blacklisting mechanisms become good (and note that blacklisting can happen on a local level now, too). So that $2000 you talk about grows to $50,000 over the course of a year. That's going to eliminate a lot of spammers.

      Now consider what happens when SPAMmers start routinely issuing "MAIL FROM: <kcbrown@sysexperts.com>"

      What happens when they do that is that the system they're connecting to looks up the MXes for sysexperts.com and -- surprise -- finds out that the IP address the connection is coming from doesn't match any of the MX records for sysexperts.com...and drops the connection right then and there. It doesn't register the sysexperts.com domain in the blacklist because there's no need: it's obvious that the connection was a forgery! The purpose of the blacklist is to eliminate domains that are successfully sending spam, i.e. the ones for which the connection address matches the MX lookup but for which the payload is still spam -- the domains that either belong to the spammers or which are open relays, in other words.

      Spammers will be able to send email in your name just as they can right now, but only because the enforcement mechanism I describe operates on information from the "MAIL FROM" SMTP command and not the "From:" header. It would be possible to enforce it on the "From:" header, too, but that will cause a lot more inconvenience, since some people legitimately rely on the ability to define the "From:" header to be whatever they want.

      Now, you may be right about the economic argument, but the technique I describe will simultaneously cost spammers more money (which is always a good thing) and more time and make it easier to fight spam at the same time, because blacklists will become a lot more effective (since now you can target domains instead of dynamically-assigned IP addresses) and a lot fairer (since you won't be targeting netblocks that could contain legitimate users). To relate back to the original article, because it'll completely eliminate the need to block IP addresses and will thus drastically reduce the need for ISPs to block SMTP (inbound or outbound).

      By the way, I think it's ridiculous for ISPs to be blocking SMTP when they could easily limit the number of outbound SMTP connections originating from any of their IP addresses to something low enough to make spam impractical but high enough for legitimate use.

      --
      Use 'slashdot stuff' in the subject line in any email you send me if you want to get past the spam filter.
    7. Re:Eathlink does this too. by kcbrown · · Score: 2, Informative
      I wrote:
      especially since there is only one paragraph in RFC 821 that even mentions "mail exchange" and not in any context that we're talking about

      Arrgh. RFC821 is way out of date...should have been looking at RFC 2821. But looking at that only seems to strengthen my case:

      The Mail eXchanger mechanisms of the domain name system [22, 27] (and
      section 5 of this document) are used to identify the appropriate
      next-hop destination for a message being transported.

      (implying that if you receive email from a host, that host should either be a mail exchanger for the sender's domain, or the originating host itself)

      ... Servers MUST be
      prepared to encounter a list of source routes in the forward path,
      but SHOULD ignore the routes or MAY decline to support the relaying
      they imply.

      and

      SMTP servers MAY decline to act as mail relays or to
      accept addresses that specify source routes.

      ...

      When source routes are not used, the process described in RFC 821 for
      constructing a reverse-path from the forward-path is not applicable
      and the reverse-path at the time of delivery will simply be the
      address that appeared in the MAIL command.

      Basically, it looks like the use of source routes is deprecated, and the only situation in which the source route will not be the sender is when it's null -- which should generally only happen when the message is a bounce message of some sort. I'd say in that case it would be acceptable to check the From: line using the same heuristics, even though the RFC says that the SMTP relay should never examine mail headers.

      --
      Use 'slashdot stuff' in the subject line in any email you send me if you want to get past the spam filter.
  10. If you want to send mail... by Ageless · · Score: 4, Funny

    If you want to send mail to AOL you just need to use something different than DSL. No big deal. May I suggest AOL/Time Warner Road Runner Cable Modem Service?

    Hermm....

    1. Re:If you want to send mail... by LoadStar · · Score: 2, Informative
      If you want to send mail to AOL you just need to use something different than DSL. No big deal. May I suggest AOL/Time Warner Road Runner Cable Modem Service?

      No, all you need to do is use your ISP provided mail server, or use an alternative mail server not hosted on your DSL line.


      After seeing the umpteenth email stroll into my mailbox that was either a spam or a virus, I applaud the move. Virtually every consumer DSL or cable provider have a "no server" clause in their ToS anyway, so this shouldn't be all that big of a deal. The original poster sounds like sour grapes because he can't use what he shouldn't be using to transmit mail anyway.


      However, as the original post referenced in the submission noted, I too wonder how AOL determines which IP addresses are dynamically allocated, and which are statically allocated, because business class DSL and cable should be exempt from this policy - those lines usually allow servers.

    2. Re:If you want to send mail... by moonbender · · Score: 4, Insightful
      Those no-server TOS are a joke, anyway. I mean, what qualifies as a server? Apache probably does. Does an Apache modified to only allow access to a small number of people? Does a similarily restricted ftpd? Okay, so how about ICQ? It's a client to the ICQ network, but it's kind of a hybrid, as it responds to requests of other clients, as well. IRC/DCC? Most/All of the P2P programs are client/server hybrids.
      What about game servers - I can't host a match of Age Of Kings for my friends?

      So, really, those TOS are a joke. A bit OT, all of this, I guess.

      --
      Switch back to Slashdot's D1 system.
  11. this isn't new by ejaw5 · · Score: 4, Interesting

    I found out about this issue few months after i got my DSL connected almost a year ago. Used to be I'd use sendmail to send email out, and worked great since I could put my email address (which was defined through a domain name email forward) in the reply-to field. then, one day i get a message from AOL claiming I'm running an open mail relay, or using a "banned" IP. Got me worried a little bit, but I found out the real reason after i got a friend to nmap my box

    --

    $cat /dev/random > Sig
  12. SMTP connections to HotMail by Anonymous Coward · · Score: 2, Informative

    I recently setup SMTP on my linux box (just for the fun of it). One of my friends has a hotmail account. I very quickly discovered that hotmail is refusing connections from my linux box (on a cable network). I very quickly told Postfix to send any hotmail bound email to my ISP's SMTP server. My friend got the email so... that may be an easy workaround for AOL as well.

    1. Re:SMTP connections to HotMail by osjedi · · Score: 2, Informative

      I have the same problem, but the solution for me is not so easy. My company is self hosted on our DSL line and hotmail refuses mail from our domain. I can't relay the mail through our ISP - we host our own domain on our own server. Hotmail is discriminating against because we are self-reliant.

      --
      -=-=-=-=- osjedi uses Debian GNU/Linux. -=-=-=-=-
  13. It's their network. by cperciva · · Score: 5, Insightful

    If AOL doesn't want to accept your mail, that's their choice. It's their network, and their mail servers. Of course, when AOL customers find that they can't receive any email, AOL might lose business.

    Like all other spam blocking attempts, there will be collateral damage. They try to keep their customers happy, and the market decides if they succeeded.

    1. Re:It's their network. by Boss,+Pointy+Haired · · Score: 5, Insightful

      Yes, but have they told their subscribers?

      You don't know you haven't got what you didn't get.

    2. Re:It's their network. by Fletch · · Score: 2, Informative

      "Yes, but have they told their subscribers?"

      Of course not. In fact, they're downright lying about it.

      I've got a free AOL account at the moment, and your question prompted me to go check out the "mail controls" that entails. I've found an option to "allow all email to be delivered to this screen name." This translates to "allow e-mail from all AOL members, e-mail addresses, and domains." (emphasis mine.) This is the default setting.

      Does that mean this account is still affected by this email blockage? They're apparently blocking it at the SMTP level, not just failing to deliver it, so, Yep! It sure is.

  14. Only dynamically assigned IP addresses by Dynastar454 · · Score: 3, Interesting

    It should be pointed out that AOL isn't blocking "All DSL" MTAs but those that have dynamically assigned IP addresses. On one hand, this is a stinky, no-good, rotten thing for them to do. On the other hand, the elitest in me says "go get a real DSL connection if you're going to run your own MTA." :-) But really, I know it's not an option for some, and this move by AOL is pathetic.

    --


    Laugh at stupidity: mod idiots +1 Funny.
    1. Re:Only dynamically assigned IP addresses by ThatDamnMurphyGuy · · Score: 3, Interesting

      Define "dynamically assigned" in the context of DSL.
      I have a 'business' dsl package. My IPs are static to my account, but they are assigned dynamically to the router. Will AOL know the difference between my email server, and some dhcp dsl users? Doubtful.

  15. Sending mail to AOL was always a headache by rolfwind · · Score: 2, Interesting

    I used to sell stuff on ebay and as such, always needed to reach customers pronto. And AOL email addresses as the unfortunate side effect of being the most unreachable.... either a high percentage never got the mail or it gets bounced.

    My advice is to get a yahoo email address, not only does it not block mail, but you won't be inundated with junkmail because they filter most of it in another folder for you. So far, they never put in anything valuable or legitimate in there so it seems to work fine. The other reason is it is ISP agnostic.... that way if you cancel AOL, you don't have to give every a new email address.

    My 2 cents^.^

  16. Good move by Adnans · · Score: 5, Informative

    If you have DSL you should still use your upstream SMTP server for outgoing mail. About 90% of incoming SPAM on my box originates from Windows boxes on DSL lines with open relays. I've set up exim to ignore all incoming SMTP calls from dsl hosts (*.dsl.*) and also to block hosts without proper reverse-DNS. These 2 simple steps take care in blocking a huuuge quantity of incoming SPAM at the doorstep...It's not fullproof, but it helps a great deal.

    -adnans

    --
    "In short: just say NO TO DRUGS, and maybe you won't end up like the Hurd people." --Linus Torvalds
    1. Re:Good move by user+no.+590291 · · Score: 3, Insightful

      Bullshit. I pay for connectivity and know what I'm doing, and run my own SMTP server. If you don't want my email, you certainly don't have to accept it, but I'll run my own anyway, and the ignorant among you can just not communicate with me.

    2. Re:Good move by rossz · · Score: 4, Interesting
      you should still use your upstream SMTP server for outgoing mail
      And what if your upstream provider is unreliable. Back when I had cablemodem with AT&T@Home, the service was so bad I swore to never rely on anyone else for email ever again. Emails sent through their servers had a habit of disappearing or taking months (yes, I said months) to finally arrive at their destination. Complaints resulted in the boilerplate response of "email service is for entertainment purposes only". For broadband in my area I can choose cablemodem or dsl. To get a static ip on dsl requires a jump in the monthly payment that I honestly can't afford at the moment (I'm an unemployed tech worker in the Bay Area, do the math). The rare contract work that I am getting requires email I can trust.
      --
      -- Will program for bandwidth
    3. Re:Good move by SoupIsGood+Food · · Score: 4, Informative

      Verifying reverse-DNS isn't a terribly good idea... you're blocking mail comming from sites that do virtual hosting. In the olden days of one-to-one mapping of hostname and IP, it was a smart move. Now, when a single box can host hundred domains or more, filtering out connections from domains without reverse-DNS is going to cause more problems than it solves.

      SoupIsGood Food

    4. Re:Good move by oblom · · Score: 2, Insightful

      %50/month for a stable connection with static IP and I have to depend on somebody else to handle my mail? I don't think so.

      No to mention, that many ISPs don't allow FROM field to contain domain names different from their own.

      AOL's "solution" is an ugly patch that does't resolve the problem, neither does sending mail through ISP.

    5. Re:Good move by SWroclawski · · Score: 5, Insightful

      I currently don't have mod points or you and others who have said the same thing would be modded up.

      There's no RFC that says you have to accept mail from *everyone*. You're free to bounce mail to whomever you like.

      As to why this is an effective technique:

      1) Most of these "home servers" don't have a PTR record at all.

      2) Those that do, almost NEVER have one pointing to the domain they claim to be recieving for.

      3) All these residential users should be using their ISP as a relay. That's what the ISP is there for.

      4) Since there's no reason for them to need to send it out *not* through the ISP as a relay host, the majority of these users are spammers or just ignorant. In the first case, it's good to block them. In the second, maybe they will get a clue.

      I'm generally against crippling services on the ISP end, but I've even thought that maybe it's high time that ISPs do what AOL does, and block outbound port 25. Incomming is another story, but as the parent and I have pointed out- the residential users should be using their ISP's mail servers as relay hosts.

      - Serge Wroclawski

    6. Re:Good move by wbattestilli · · Score: 3, Interesting

      My ISP is not sufficiently reliable to use their mail servers. This is why I run my own. They have a lousy uptime and are vulnerable to the email worm of the week.

      I also cannot switch providers because my provider has a local broadband monopoly.

      I am neither ignorant or a spammer. I simply would like to have a server that is predictible.

    7. Re:Good move by raju1kabir · · Score: 3, Informative
      All these residential users should be using their ISP as a relay. That's what the ISP is there for.

      I have Verizon DSL. Their relay won't let me send mail with any return address other than @verizon.net. That's completely useless, so I don't use it. Are you honestly saying that all broadband customers should restrict their email addresses to those assigned by their bandwidth providers?

      --
      "Patriotism is your conviction that this country is superior to all other countries because you were born in it." -- GBS
    8. Re:Good move by doorbot.com · · Score: 4, Informative

      1) Most of these "home servers" don't have a PTR record at all.
      2) Those that do, almost NEVER have one pointing to the domain they claim to be recieving for.


      Maybe because that would cost me even more money, and I don't see the need to pay for that, when all I really need is a static IP. If you want to pay for it, though, drop me an email (if you can).

      3) All these residential users should be using their ISP as a relay. That's what the ISP is there for.

      Except I have to pay for this service too. If I want to host my own domain, I can do it with Linux and an MTA. I don't need to rely on Pacific Bell, and more importantly I don't need to pay them extra for a service I can provide on my own.

      4) Since there's no reason for them to need to send it out *not* through the ISP as a relay host, the majority of these users are spammers or just ignorant. In the first case, it's good to block them. In the second, maybe they will get a clue.

      Pacific Bell's mail servers have been blacklisted in the past, thanks to these spammers. My IP, however, has never been blacklisted. If I tried to relay out through my ISP's SMTP server, I would have a hard time delivering my email.

      I agree with your points, but in reality it is a flawed plan. All it takes is one spammer to get an ISP's mail server blacklisted (and I think we all know how quickly the ISPs react to get themselves removed from the lists). At least with my DSL line, as long as I am (apparently now it's "was") a good citizen, I could send mail to whomever I wanted.

      If it comes down to me relaying through my ISP, I'll probably bounce through the server at work. Unfortunately, not everyone has that option.

    9. Re:Good move by chill · · Score: 3, Informative

      Really? You just pay for connectivity? Who is your provider? I need to switch!

      Of course, if you mean you didn't read your TOS and only THINK you are playing just for connectivity, then never mind.

      --
      Learning HOW to think is more important than learning WHAT to think.
    10. Re:Good move by Mastoid · · Score: 3, Informative
      I have Verizon DSL. Their relay won't let me send mail with any return address other than @verizon.net. That's completely useless, so I don't use it.

      True. In fact, Verizon requires that you both use a From address for a domain that they host (such as bellatlantic.net or verizon.net, or a domain you pay them to host) and authenticate with their outgoing relay.

      However, for what it's worth, you can put whatever you want as a Reply-To.

      --
      I had an argument...with the person here at the university that teaches OS design. I wonder when I'll learn --Linus
    11. Re:Good move by xdroop · · Score: 3, Insightful
      Since there's no reason for them to need to send it out *not* through the ISP as a relay host, the majority of these users are spammers or just ignorant. In the first case, it's good to block them. In the second, maybe they will get a clue.

      Right, I'll bite.

      Let's pretend I am an idiot who has a cable modem. And let's pretend that said cable modem issues an IP within the verboten rage. And now let's pretend that I have my own email domain completely unrelated to that of my ISP's, and that I use sendmail to send mail out.

      With me so far?

      Now, let's pretend that said ISP has implemented authentication requirements -- in other words, I must identify myself with a SMTP AUTH username and password before my ISP's server will accept my outbound mail.

      So. How do I configure my sendmail so that it uses my ISP's server as a relay (SMARTHOST definition) but feeds it the magic username and password first?...

      Any ideas?

      --
      you should read everything on the internet as if it had "but I'm probably talking out of my ass" appended to it.
    12. Re:Good move by analog_line · · Score: 3, Insightful

      It isn't worth a whole hell of a lot.

      I have several customers who have Verizon DSL, but have domains hosted elsewhere, with mail hosted elsewhere, without authenticated SMTP relay. I would imagine, while certianly doing this to decrease their spam problem, that there's some sort of collusion (spoken or unspoken) industry wide to try and force ISP customers to use their bandwidth provider's services, hence making them more money.

    13. Re:Good move by Dossy · · Score: 2, Insightful


      Umm ... if you're running your own mailserver on your residential DSL ... aren't you violating the Terms of Service of most residential DSL agreements which says "thou shalt not run servers that are accessible via the DSL connection"?

      If you need email you can trust, what's wrong with Hotmail or Yahoo! or any other free mail service?

      -- Dossy

    14. Re:Good move by Jack+Hughes · · Score: 2, Informative

      U - user (authorization) id
      I - authentication id
      P - password
      R - realm
      M - list of mechanisms delimited by spaces
      Or you could RTFM http://www.sendmail.org/m4/smtp_auth.html

  17. "Residential" DSL meaning what, exactly? by phillymjs · · Score: 4, Interesting

    Services like Verizon, that use DHCP and/or PPPoE and already have a "no servers" policy? What's the criteria, here??? It will be interesting to see how AOL differentiates "residential" DSL from other types of DSL.

    I use SpeakEasy DSL via Covad. This service is technically residential, because my servers are sitting in my house. But I have a legitimate domain, and static IPs on my servers. However, reverse DNS lookups return "dslwww-xxx-yyy-zzz.phl.yadayadayada," NOT my registered domain name.

    I just successfully sent myself a test message from my domain mail to my AOL account, so I'm not being blocked yet. I guess I'll start sending a test message once or twice a day to make sure it still works, until AOL clarifies their policy. And if I do get blocked, there's gonna be some hell raised about it. My servers are locked down tight and laways have been. Shutting out all DSL-hosted mailservers to keep out spam is like burning your house down to keep it from being burglarized.

    ~Philly

    1. Re:"Residential" DSL meaning what, exactly? by silas_moeckel · · Score: 2, Informative

      It would seem they have added blocking to all dynamic IP senders. ISP's submit these blocks willingly if your ISP put you on the list of dynamic IP have a talk with them NOT AOL. Not all ISP's submit to these lists. Generaly the best thing to do is to have your sendmail use your ISP's mailserver as a smart relay it gets rid of the issues.

      Now as to why people with dynamic IP's are responcible for a VAST ammount of spam (per my spamfilters and thats for over a quarter million domains and no I dont have pretty graphs :) It's jsut way to easy and fast to get DSL, cable modem, or dial up and start sending email dialup especialy. These people cause serious ammounts of grief to the ISP's that end up with them.

      --
      No sir I dont like it.
  18. This didn't start April 10th ... by dougmc · · Score: 3, Informative

    The first I noticed it was March 27th (and I don't email my dad @ AOL that often, so it probably happened even before that ...)

    The original message was received at Thu, 27 Mar 2003 13:35:36 -0600
    from dougmc@localhost

    ----- Transcript of session follows ----- ... while talking to mailin-03.mx.aol.com.:
    550-The IP address you're using to connect to AOL is either open to the
    550-free relaying of e-mail, is serving as an open proxy, or is a dynamic
    550-(residential) IP address. AOL cannot accept further e-mail
    550-transactions from your server until either your server is closed to free
    550-relaying/proxy, or your ISP removes your IP address from their list of
    550-dynamic IP addresses. For additional information, please visit
    550 http://postmaster.info.aol.com. ... while talking to mailin-04.mx.aol.com.:

  19. I have a great idea for AOL! by stj · · Score: 3, Funny

    How about if AOL bans all of the e-mail traffic - in and out of their domain? Wouldn't that be great? They could even actually ban telnet, http, and ftp, too. And later all possible ports. In the end, they can even earn some money by selling their edge routers ;-)

    --
    iThink iHate iMod
    1. Re:I have a great idea for AOL! by dougmc · · Score: 2, Informative
      They could even actually ban telnet, http, and ftp, too.
      They used to do that (sort of. They didn't ban the traffic, they just didn't route it.) If you don't recall, AOL started as a glorified BBS and only later did they add email, then Usenet, then WWW and other Internet services.

      Read about The September that never ended !

  20. its not just DSL... by Mark19960 · · Score: 2, Interesting

    They are targeting broadband in general.
    I work for an electronics repair company...
    we use road runner buisness class.
    At work, I just recently wrote an application that interfaces with our database, and sends our customers email containing the status of their equiptment.
    I just checked to see how many emails we send to that domain, and its a fair amount, I would say 15% of our customers.
    this would create a problem for us communicating with potential or current customers.
    im all for fighting spam, but are we collateral damage in this war?

  21. Ramblings on a Pseudo-Internet-Network by m_evanchik · · Score: 3, Interesting

    I guess this is sort of like the New York branch post offices not delivering mail from Florida, because that's where a lot of junk mail originates from.

    I have a fairly nasty conspiracy theory on why AOL and Comcast are cooperating on this. By shutting out the innovative do-it-yourselfers on the Internet from their network, they squelch potential competition from their "value-added" services.

    The next step might be to block web servers that don't originate from big corporate server farms. After all, who knows what could be on those independent things but kiddy porn and terrorist training instructions?

    The irony is that the great mass of obtrusive commercialism on the Internet originates on the corporate, big-player side. AOL was the innovator in turning the WWW into a virtual shopping mall.

    You would like to think, however that this will backfire on them, as customers look to alternatives to their increasingly sanitized pseudo-Internet network.

    And how does one fool their IP filters anyway? It makes one want to "spam" everyone of AOL's customers with a protected-from-legal-prohibition-because-it-is-not -commercial-speech protest email.

  22. Open Proxy Madness by Akai · · Score: 4, Informative

    As a network engineer of a DSL and T1 only ISP (we have dialup but only for traveling DSL/T1 customers) I can let you know that this will probably stop oodles of spam.

    The latest spammer tactic is not to seek out open relays, but open windows proxies, and from there they can initial outbound SMTP connections to legit SMTP servers and send spam.

    Already a large number of dialup providers will only allow you to send through their mail server, and a larger number of ISPs user the DUN RBL to block email directly from dialup pools.

    This is just more of the same. Your ISP should provide you with SMTP service, use them as a smart host even if you're running your own SMTP server, so it'll offload the requeing/etc from your box to theirs.

    DSL and Cable are the new dialup, and should be treated as such, a place where the majority of the customers are clueless idiots who ruin the party for the smart people.

    Several ISPs are starting to scan mail servers sending them mail for open proxy/open relay before accepting the mails, expect to see this practive and AOL's solution spread to most ISPs in the near future.

    If you want to run a real mail server, perhaps you should get a real internet conenction, like Colocation or T1.

    --
    Please send all UCE to scally@devolution.com so I can f
  23. Trivial fix by harlows_monkeys · · Score: 4, Informative
    In /etc/mail/sendmail.mc:

    define(`SMART_HOST',`smtp.server.of.you.isp')
    1. Re:Trivial fix by Anonymous Coward · · Score: 2, Interesting
      In /etc/mail/sendmail.mc: define(`SMART_HOST',`smtp.server.of.you.isp')

      That's a good idea except:

      1. The spammers are relaying through you, AOL blocked your mail server, now you forward your mail to your ISP. Spammers are still relaying through you and you're happily forwarding it through your ISP's relay.

      2. Some ISPs do stupid shit like check the From address in the header and only let you relay if it's in one of their approved domains. I think Verizon does (or did) this.

      3. Internet traffic is easy enough to sniff, but do you want to make it simple for your ISP to log and catalog what messages you send to who? I'm sure only terrorists care about this, but why should my ISP need to know who I send e-mail to? Just another reason I don't use their stupid pop or imap. Do I trust some fat lazy admin at the ISP not to sit there and read my email for his jollies? It's less likely he's going to SPAN a port off a switch and sniff all my traffic than it is for some faggot lazy bitch to read my mail spool. (Yes this happened to me).

    2. Re:Trivial fix by corz · · Score: 2, Informative

      Or, for qmail users:

      echo ":smtp.server.of.your.isp" > /var/qmail/control/smtproutes

    3. Re:Trivial fix by Saint+Nobody · · Score: 2, Informative

      http://www.sendmail.org/~ca/email/sm-812.html#812A UTH

      you put this in your access map: "AuthInfo:smtp.server.of.your.isp "U:foo" "I:foo" "P:bar"" although you might need to know realms and/or mechanisms, too.

      next time, at least check to see if it's an easy answer before you get belligerent and sarcastic.

      --
      #define F(x) int main(){printf(#x,10,#x);}
      F(#define F(x) int main(){printf(#x,10,#x);}%cF(%s))
  24. Admins with users can't ban AOL by astrashe · · Score: 2, Insightful

    If you're an admin with users (ie., not just running your own system), it would be pretty hard to ban incoming mail from AOL.

    A year or two ago, I had AOL trouble with my free colocated server. The people who gave me the server were using IP addresses from a T1 line that they bought from a cable modem company. It wasn't on a net connected via a cable modem, but it was part of the cable modem company's block.

    So AOL just silently deleted my messages. It's very frustrating, they don't tell you anything, you can't find documentation, no one will answer an email, etc.

    It would be nice, at least for the first few days after they start the policy, to bounce messages with some sort of explanation, rather than just tossing them out.

    I don't really have a problem with them trying to block spam -- I had access to a bigger, upstream SMTP server, so I could relay -- but it sucks that they don't tell anyone what's going on.

    At the very least an AOL mail admin could post something on a mail admin's email list, so that a google search would turn up the answer. What would that take, five minutes?

    1. Re:Admins with users can't ban AOL by Ryquir · · Score: 2, Interesting

      While some people and companies can, are willing and do throw their weight around by blocking net offenders. Very often those people/organizations are in the extreme minority. That form of blocking is also very much the last resort tactic hurting both the person being blocked and the blocker equally.

      Truthfully while blocking @hotmail and @yahoo and @aol has a certain appeal as a admin of a site. If we were to do that, I can't think of any user which would not be irate with us rather than their own ISP. Regardless of how explaintory we were, today's joe average user (and almost every user who's not joe average) doesn't care how they get it, they want their e-mail and all hell breaks loose if they don't get it.

      Secondly when your a site that does business with customers, mention of today's economy assumed, you just can't say "screw this set of customers they use XYZ, since XYZ doesn't play nice we won't do business with you."

      So how can we, "punish the wicked" but "spare the innocent?"

      Until there is a universal or at the very least "good" way of getting small and large internet users to understand why they aren't just a island unto themselves the internet will continue to have problems like this.

      I don't blame AOL for what they are doing, at our site we've seen an uptic in spam of more than 100 percent in the last 8 months and at least 20 percent just this month alone. What AOL will ultimately have to discover though, is that in the end their goal is not acheivable, since spammers don't care and have never cared that a recipient does or does not get their e-mail. For that reason I'd rather see them and others work together to develope a solution which we all can support.

  25. Re:Good. by profplump · · Score: 2, Interesting

    If they were really spamming AOL, they wouldn't need a mail server -- their could just tell their mail client to use mailin-03.mx.aol.com as the SMTP server, and it would gladly accept any mail bound for aol.com. Or at least it would before this ridiculous policy. The ability of people to run mail servers is not an issue -- SMTP doesn't care.

  26. Umm.. by doofsmack · · Score: 4, Funny

    Slashdot's RFC-ignorant too.. Bounces abuse@ emails.

  27. Mexico by Roadmaster · · Score: 2, Interesting
    Mexico's only DSL provider, Telmex/Prodigy, has been disallowing use of their SMTP servers to relay any mail not having a local @prodigy.net.mx part. The problem comes for a lot of people who connect via Prodigy DSL, but have other domains, hosted elsewhere, and want to have addresses @mycompany.com or similar. Whether Prodigy did this as a measure to coerce customers into getting "integral" solutions from them and kicking other ISPs and consultants out of the game is open to debate.


    So far, the option we've been using for our customers is configuring a local SMTP server which then delivers directly to destination. We use Linux for this, and configure it so that it only allows incoming SMTP from the local network.


    Recently, however, customers started reporting lots of bounced messages. Further diagnostics indicate several large mail providers are now blocking SMTP connections from dynamically assigned DSL IP addresses. I personally checked this happening with yahoo, AOL and Earthlink.


    It sucks that the Internet is becoming such a hostile place; I think of those quiet towns where everybody can leave their doors unlocked at night. Now it's become like any large city where doing such a thing is equivalent to giving away all your belongings. It also sucks that Prodigy (and, doubtless, other ISPs worldwide) won't let customers use their SMTP servers; this is, after all, a service I'm paying for. Fairly, we should get a discount for NOT using their servers, given that they're completely useless for our configuration.


    For now, the solution we've devised is using SMTP AUTH to let the customers' email be sent using our own SMTP server, which normally won't allow SMTP relaying from addresses outside our own IP network. However this feels like a hack and puts additional configuration burden on us.


    Is spam the ultimate cause for all this hostility on the net? maybe so. And if that's the case, here's another reason why perhaps the next war we see should be the one against spammers.

  28. You want these rights for *YOUR* MTA, right? by Cirkit · · Score: 5, Informative

    I'd expect users of RBLs (see http://www.spews.org) and certainly the denizens of NANAE to argue that they have the right to refuse to receive email from anyone, for any reason, since that mailserver is private property.

    It can be used in ways you like (refusing emails from Verizon's corporate HQ because they refuse to kick their spammers) or in ways you don't like (making it more difficult to send outgoing mail), but I don't see how you can reasonably kick and scream against one and not the other.

    Actually, several providers have been refusing email from dial-up pools for a year or more, which is what caused me to decide that I would need to send outbound email through my ISP. IIRC, attbi refused email from my server on my ISDN line over a year ago.

    The solution isn't difficult - go dig around on your ISP's website (or call them) and figure out the mailserver that you'd be using if you WEREN'T running your own MTA. Set your mail server to relay outbound emails through them. (See your man pages - it isn't difficult.) There's NO way your ISP's mailserver is going to refuse to accept your email, since if they did, no one not running an MTA could get email out. Sure, you'll have an extra line of headers in your outbound email, but it doesn't seem like such a big deal. Was the location of your mail server a secret anyway?

    Of course, if your ISP is a notorious hoster of spammers, you're going to need to find a new ISP. You didn't really want to support those spammers anyway, did you?

  29. Sendmail workaround by sbraab · · Score: 2, Informative

    I saw this problem a while ago with Verizon corporate. I finally had to set up my sendmail to relay through my DSL providers mail server.

    To do this with sendmail use DSoutgoing.isp.net

    If you need to authenticate you need to set up a default-auth-info file.

    This has made mail delivery far more reliable.

  30. This is a good thing by mark_space2001 · · Score: 2, Flamebait
    From the article:

    In its latest attempt to crack down on spam, America Online has started blocking what it deems to be suspicious e-mail sent by customers of Comcast's High-Speed Internet and AOL Time Warner's Road Runner broadband services.

    AOL, the interactive arm of AOL Time Warner, began in the last week to reject some e-mail sent by users of those services, according to AOL. AOL and Comcast, in particular, have worked together to identify a range of Internet protocol addresses of Comcast customers who have set up their own mail server to send messages, as opposed to using Comcast's mail servers like most subscribers do.

    So this only affects you if you're 1) using Comcast, and 2) are running your own SMTP server. I have a different ISP and I use their SMTP server, even tho I have a server running for other protocols. It works fine, and there's no functionality I feel I'm missing. Mostly my server is there for firewall and NAT.

    Can't send mail to mom, timmy? Use Comcast's goddamn mail server.

    This move by AOL is a good thing. It eliminates one more source of potential spam, and closes many open relays, many of which were open only through ignorance. This is the way of the future, and I assume what everyone using the internet wants: close those damn open relays. I certainly am sick of spam, and I can't see how this is truly a cause of any inconvenience for anyone.

    If Comcast was closing off incomming port 80 for all customers, and then charging an ass reaming to reconnect the service, that would be different. But having your own SMTP server doesn't provide any functionality that you can't get from Comcast at base price anyway.

    In summary, good, and I hope many ISP's will follow Comcast's lead on this one.

    1. Re:This is a good thing by bourne · · Score: 4, Insightful

      But having your own SMTP server doesn't provide any functionality that you can't get from Comcast at base price anyway.

      Actually, it provides three bits of functionality:

      • Performance (less stupid delays)
      • Reliability (less insanely stupid delays)
      • Intelligent anti-spam, based on more complex thinking than "Hell, let's just block a /8."

      This move by AOL is a good thing.

      No, actually, it's a fucking bad thing. But you won't realize it until the day that you want to send your friend on MSN email but can't, and neither of you can talk to your parents who are on AOLMail, both of which are playing games to close their protocols to make sure that GnuMail can't play.

      Providing an open replacement for SMTP that has the authentication and accountability that SMTP is sorely lacking would be a good thing. Segregating the Internet address space into ghettoes is not.

  31. AOL's triage spam solution: block email from DSL by markwelch · · Score: 4, Insightful
    Wow, perhaps this explains the huge upsurge in the number of non-received emails. People in my Rotary club are baffled that I am not responding to their emails, and it certainly seems to be all the AOL folks. Are they rejecting emails, or blackholing them?

    I run my own mail server on a "business DSL" connection with a static IP address, but it runs to my home and I doubt there is any genuine distinction between "residential" and "business" DSL lines. I run my own server, of course, so that I can have a fairly powerful set of spam filters at the server side, in addition to a complex set of client-side spam filters -- all because I receive hundreds of spam emails per day, including dozens that I can identify as coming from AOL-owned servers.

    I assume that AOL has only disabled receipt of email from DSL lines, and continues to send its customers' spam to folks like me. It's hard to know, since my filters already reject more than 98% of incoming email delivery attempts.

    Let's at least try to be fair to AOL: they are just like the rest of us, forced to seek out triage solutions to the increasingly aggressive strategies used by spammers. Until a new structure is widely adopted for exchange of email (something that allows for true source verification and financial compensation for abuse), triage is the only solution that will work. Hence I block nearly all email from earthlink servers and customers, as well as juno.com and HUNDREDs of other domain names and IP addresses.

    --
    -- http://www.MarkWelch.com/ Pleasanton California
  32. Re:what a buncha crap by 0x0d0a · · Score: 2, Insightful

    aol is pitiful

    But representative of the masses. Most people don't care about anything but Web access and email -- and the more this happens, the more the Internet heads in that direction, regardless of how much we dislike it.

    It may be pitiful -- but it's probably indicative of the future. Already, extensive random firewalling has made HTTP one of the few mechanisms that can be relied on to work in all environments.

    Sigh.

  33. Use your upstream ISP by Builder · · Score: 2, Interesting

    I personally think this is a good thing. I know a lot of ISP's who've voluntarilly added all of their dialup and DSL IP addresses to various RBL's. They insist that you use their upstream SMTP server.

    This way, you can still send mail, and ISP's don't have to police all of their users to ensure that they aren't running open relays.

  34. Doesn't bother me by vandan · · Score: 2, Flamebait

    I'm sick of all the spam, and all the spam comes from DSL SPAM faggots. So what's the problem?
    If you have to send mail from a DSL account, use your ISP SMTP server. That's what it's there for. Having said that, I am a DSL user who uses his own SMTP server (mainly for spam filtering which I think I can do better than my ISP)- but if I am forced to use my ISP's smtp server to help lessen the burden of SPAM, I don't have a problem with that.

    For another way to fight spam, which I read on the Mimedefang mailing list, how about setting up a way for domain admins to specify valid smtp servers for a domain. Then when mail comes in from, for example, yahoo.com, your mail server can query yahoo.com for the list, and if the originating server isn't on it, then the mail isn't accepted.

  35. Privatized mail by Dukeofshadows · · Score: 4, Insightful

    The United States Postal Service has announced it will stop delivering
    any mail from Florida, due to the large number of mail-order scams originating from that state


    Don't laugh too hard on that one, there are schemes in place of trying to privatize and eliminate the whole of the US mail system including first class postage. While it might be neat to have all your mail sent by one company like UPS and while the post office does need to get its act together ASAP, my concern is that rural areas would by stuck with only one greedy private company as their only means of communication (thus making it expensive to send or recieve mail at all). Remember, the postal system in the US is a time-honored tradition that has been the envy and model for the rest of the planet. It is also in good working order, thus if AOL chooses not to accept e-mail anymore, why not just bombard them with snail mail? We could also return their bloody disks right back to them while we're at it. Maybe after they get several hundred thousand they'll get the hint.

    And if you think the AOL-Time-Warner lawyers will allow their most lucrative domain to be taken from them then I have to disagree. I figure they've already got a loophole in the fine print somewhere that is as easily exploited as the pictures of children for those old Sally Struthers commercials (the ones where the kids keep starving but she kept growing). There hsa to be some reason behind this that is not yet shared, hopefully their decision has a more rational basis than some of the arguments for privatizing the US postal system.

    --
    As long as there is a Second Amendment, there will always be a First Amendment.
    1. Re:Privatized mail by LamerX · · Score: 5, Insightful

      I dont' understand why everyone is so down on the USPS. I've never seen packages arrive late. My mail, which sits out in an unlocked box on the street, never gets messed with, it always arrives at its destination, and it seems to get there pretty quick. I mean, which method do you notice EVERY company sends out bills? I've never seen anyone send bills via UPS or FedEx, even though according to many people the USPS sucks....

    2. Re:Privatized mail by EvilTwinSkippy · · Score: 5, Insightful
      The can't tweak it too hard.

      According to the constitution, by law Congress must provide a postal system. Short of a constitutional ademendment, they are just a lawsuit away from any "reform" ideas being thrown out.

      And frankly our postal system is a bargain. Try sending 2 oz letter 3500 miles for $0.36 in any other country in the world.

      Now if you only had a telephone and a broadband service like that...

      --
      "Learning is not compulsory... neither is survival."
      --Dr.W.Edwards Deming
    3. Re:Privatized mail by kaszeta · · Score: 4, Interesting
      I dont' understand why everyone is so down on the USPS

      I used to like the USPS, then I moved someplace that isn't served by the USPS. While I live in a somewhat rural environment, my town has over 5000 residents, but only 1 part-time mail carrier (and no plans to *ever* get another according to the local postmaster), so if you aren't on the one street that's on the route, you don't get mail. They canceled rural route service years ago. And they ran out of PO boxes back in 2000, and again, they don't plan on ever getting any more of them. And they think there is nothing wrong...

      On a related note, I hate businesses that can't understand that my PO Box is my *only* USPS-servicable address, businesses that insist on sending correspondence to my shipping address instead of my billing address, and rebates that don't accept PO Boxes.

    4. Re:Privatized mail by TeraCo · · Score: 2, Interesting

      Well, in Australia it's only .47 AUD, which is about 25 cents US.. we also don't pay to receive cellular calls..

      --
      Not Meta-modding due to apathy.
    5. Re:Privatized mail by MetaDupe · · Score: 2, Informative

      Why does the USPS need to get it's act together? you cite that our already privatzed postal service is the envy of the world, but why say it needs to get its act together? They are efficient, statistically reliable (anecdotes about US mail getting lost are mere, well, anecdotes) and very cheap. 37 cents for a first class letter? 2-3 day express mail is comprable to UPS and Fedex in speed and reliability and waaaaaaay cheaper. Of course, Fedex is a bit safer for overnighting and UPS cuts great deals, but as far as a post office system goes, the USPS 0wnz3rs.
      BTW, did you know that the USPS does not take taxpayer money? Not a cent.

    6. Re:Privatized mail by innocent_white_lamb · · Score: 3, Informative

      And frankly our postal system is a bargain. Try sending 2 oz letter 3500 miles for $0.36 in any other country in the world.

      48 cents in Canada, which is about 31 US cents at current exchange rates.

      Try again.

      --
      If you're a zombie and you know it, bite your friend!
    7. Re:Privatized mail by Some+Dumbass... · · Score: 2, Insightful

      Try sending 2 oz letter 3500 miles for $0.36 in any other country in the world.

      I assume that joke here is that there are hardly any other countries in the world which have 3500 miles for a letter to go. Even if the mail in, say, Japan were free, you still couldn't send a letter 3500 miles. I guess nobody got it. :)

    8. Re:Privatized mail by Some+Dumbass... · · Score: 2, Insightful

      Why does the USPS need to get it's act together? you cite that our already privatzed postal service is the envy of the world, but why say it needs to get its act together? They are efficient, statistically reliable (anecdotes about US mail getting lost are mere, well, anecdotes) and very cheap.

      Because it's losing money. They lost quite a bit last year.

      Also, if you've ever waited in line at a post office, you know that some aspects of their service are not exactly the model of efficiency. :)

    9. Re:Privatized mail by kingramon0 · · Score: 2, Insightful

      The Constitution authorizes Congress to establish a postal service, but it doesn't mandate it. So it could be changed or done away with completely, but it wousdn't be a good idea.

      Article 1, Section 8

      Clause 1: The Congress shall have Power To...

      Clause 7: To establish Post Offices and post Roads;

  36. Average /. AOL reply by Rai · · Score: 3, Funny

    How to post a negative AOL reply on Slashdot.org just like a veteran /.er.

    1. Start off by naming the previous number of times AOL has done something you dislike, noting that this particular incident is "the worst yet."

    2. State your greivances about the topic. Explain, in near-irrevelant detail, how this will negatively effect you and others.

    3. Throw random arguments in about how non-AOL services are far superior to AOL services.

    4. Also imply that anyone who still uses AOL must be of inferior intellect that yourself.

    5. Notate the sudden revelation that you don't use the services of AOL (in fact, can't recall any time at which you did use AOL) and, if you did, you and anyone else using AOL probably deserves the a forehand mentioned greviance and whatever similar issues they get.

    6. Close with witty remark about poor service and/or "AOHell" reference and offer cliche signature of either "Step 1. AOL reference, Step 2. (blank), 3. Profit!" or "All your base..." adaption.

    IN RUSSIA, AVERAGE AOL REPLY WRITES YOU!

  37. Re:Hah! Let the War Begin! by kasperd · · Score: 2, Funny

    As an antispam measure I've blocked AOL, hotmail and Yahoo for a while

    Some years ago I just blocked .com to prevent spam. Unfortunately that doesn't catch all spam anymore.

    --

    Do you care about the security of your wireless mouse?
  38. Broken ISP Mailservers by sa3 · · Score: 2, Insightful

    It's all very well saying "residential users should use their isp's mailserver", but what about when that mailserver doesn't appear to know what an RFC is:

    Connected to mail.bellsouth.net.
    Escape character is '^]'.
    220 mail.bellsouth.net ESMTP server (InterMail vM.5.01.04.25 201-253-122-122-125-20020815) ready Sun, 13 Apr 2003 19:17:26 -0400
    MAIL FROM:<>
    250 Sender <> Ok
    RCPT TO:<slashdot@slashdot.org>
    550 .net 022: Your current IP address is not allowed to relay to slashdot.org Solution: Connect using BellSouth Internet Service.
    QUIT
    221 imf35bis.bellsouth.net ESMTP server closing connection

    <> is an important from address - it's used by the mailserver when it bounces a message, so that the bounce can't be bounced back and forth in a loop

    For that particular server I used to test that, I had to arrange to send email via someone else's mailserver using smtp auth >:|

  39. What a Terrific Idea... by cribcage · · Score: 4, Interesting

    I strongly recommend that as a compensatory measure, non-AOL MTAs be configured to deny all incoming mail from AOL's domain."
    Yeah...because when a big corporation does something wrong, we should exact revenge upon all of its customers.

    That's very mature. Particularly in the case of AOL, which services the vast majority of under-educated internet users. You'll fuck up all of their personal email communications, and they won't have the first clue why.

    Brilliant solution.

    crib

    --

    Please don't read my journal
    1. Re:What a Terrific Idea... by Squidgee · · Score: 4, Insightful
      Yeah...because when a big corporation does something wrong, we should exact revenge upon all of its customers.

      Actually, we should; it's called putting pressure on the corporation. If we were to pressure the corp, then they'll give in if enough users are f-ed up.

    2. Re:What a Terrific Idea... by MrWorf · · Score: 2, Insightful

      A better solution would be to modify the mails coming from AOL and add a footer that states that AOL is activly blocking mail for no good reason and that you as the recipient should be aware and contact their postmaster and complain.

      Much better than this idea of "kids play" with doing to them what they are doing to us.

  40. Blocking Mail Servers that don't have Reverse DNS by lanner · · Score: 2, Insightful

    Blocking Mail Servers that don't have Reverse DNS

    This issue is somewhat related, and is just another part of the big issue of preventing users from setting up their own services upon their Internet connections. If you can't send an receive any data that you want, it's not true Internet access. Now, I am not talking about setting up a mail server at work behind the corporate firewall, or on the college LAN. I am talking about the DSL line that I pay $55 to $150 a month for.

    Recently I put up a personal mail server off of my DSL line. It uses Courier for the MTA. I am able to send and receive mail to most hosts on the internet, but a few will not accept messages from my mail server. I was curious as to why, so I did an investigation.

    It turns out that these mail servers check reverse DNS for the IP address that I am using for a mail server. Doing a forward DNS check would be just fine, but a reverse DNS check? It does not stop spam, and worse, it blocks legitimate mail servers.

    My ISP is pretty stupid on the technical wise. They use EIGRP as their IGP and they leave their customers on a live EIGRP enabled interface. I could inject routes into their IGP if I wanted to. Most of their Cisco routers also have HTTP and finger enabled. They definitely don't do anything about reverse DNS. There is no way that I can register my mail server (mail.opendreams.net) with the IP that I use (66.192.31.140).

    The mail servers that I have so far discovered block mail from me include;
    The University of Central Florida, @pegasus.cc.ucf.edu, pegasus.cc.ucf.edu
    Datanomix Inc, @datanomix.com, mail.datanomix.com

    How did I find out? Here is an example of a telnet to port 25 that I did...

    user@sorrows-->telnet pegasus.cc.ucf.edu 25
    Trying 132.170.240.30...
    Connected to Pegasus.cc.ucf.edu.
    Escape character is '^]'.
    EHLO mail.opendreams.net
    450 Client host rejected: cannot find your hostname, [66.192.31.140]
    QUIT
    221 Bye
    Connection closed by foreign host.

    The mail server won't even talk to me.

    Issues like this will make mail on the Internet no longer a sure thing. There will be mail routing and blocking issues all over, and you can't be sure that one mail server will talk to another. This is not acceptable.

    I personally think that there needs to be U.S. Federal laws made to protect the rights of Internet users. The reason that I think that law is necessary is that there is no competition in many areas for internet access. If there was, I could just switch carriers, but I have no options.

  41. Is Your IP # Blocked? by realperseus · · Score: 2, Informative

    Check here.

    --
    "Trusting every aspect of our lives to a giant computer was the smartest thing we ever did.." Homer Simpson
  42. Not Just AOL by gesualdo · · Score: 2

    Last week I discovered that Road Runner had blocked all incoming mail traffic from my workplace's domain. When we called RR to seek an explanation, since we have our relays secured and don't spam, they told us that it wasn't just our IPs that were blocked, it was ALL of the IPs that our ISP, Allegiance, owned. Apparently one person had sent enough spam to annoy RR, but instead of blocking just one IP or a small range, they decided to boycott ALL mail from the owner of the IP. Very annoying, and unprofessional, if You ask me.

  43. The last gasps of a ding regime err ugh BBS by DarkOx · · Score: 2

    AOL is loosing money hand over fist and then some, Time Warrner is gonna kill the service or more likly turing it into more of a web porthole and less the friendly AOL bbs ppl are familliar with sooner or later anyway. I suspect they will move as many customs to their broadband services, and turn the rest out. I see AOLs future as more of a paid subscription web site then and ISP anyway as they cannot afford to be an ISP much longer at this rate. When that happens it won't matter what they do with e-mail becase "Moms" e-mail address with be at @HerRealIsp.net. If AOL can loose a few customers over this because they don't like not being able to get mail from their frends without using hotmail or something then it will only speed the process along.

    --
    Repeal the 17th Amendment TODAY! Also Please Read http://www.gnu.org/philosophy/right-to-read.html
  44. Not new, easy workaround by Rufus211 · · Score: 2
    This really isn't new. When I set-up a mail server on my RoadRunner cable modem about a year ago, I noticed that any e-mail sent to AOL was just silently dropped. No bounce or anything, just send and no recieve. Simple workaround, set your mailserver to use whatever your ISP's smtp server is as a smarthost. That way instead of sending directly to smtp.aol.com, you send to smtp.rr.com (or whatever), which then forwards it for you to smtp.aol.com, and AOL does *not* block those. Here's my exim.conf for the related part (make this the only thing listed under ROUTERS CONFIGURATION:
    # Send all mail to a smarthost

    smarthost:
    driver = domainlist
    transport = remote_smtp
    route_list = "* smtp.rr.com bydns_a"

    end
    obviously change the server as needed.
  45. The end of open SMTP, dawn of the whitelist era by analog_line · · Score: 2, Interesting

    For a long while I've seen several stories in the ongoing war against the spammers, and the more draconian the measures get (blocking all of East Asia as many in these discussions proudly claim to have done) the Internet e-mail system appears to be in it's death throes already.

    When you start blocking such a significant percentage of the world in a blanket measure, wouldn't it be simpler and more effective to screw tortuous blacklists and just implement a whitelisting procedure? I mean, if over half of all the e-mails businesses get aren't legitimate, why in the world are these businesses throwing money down the drain by continuing to pay for something that doesn't work over half the time?

    IP+address whitelisting is really the only way to go if you want a useful messaging system based on SMTP anymore. That, or completely revert to instant messaging/private web boards. I'm sure some kind of system could be worked out to allow for simple temporary whitelisting which would let a user allow mail to himself from a certain address for 2 hours, or whatever the local admin defined as the maximum allowable time. Then, at the end of the day, if a user checked the box asking for this addresss/mail server IP combination to be put on the permanent whitelist, it gets sent with all the other such requests to an administrator who vets the list, then adds whatever addresses pass muster onto the permanent whitelist. You could add functionality that has tripwires if you start getting spam from that person...so many peices allowed before a warning, so many before removal from the whitelist for a week, then forever, etc... Yes, it places a demand on the mail administrator, but certainly no more of a demand than the running battle currently takes up.

    Personally I have very little use for regular Internet e-mail. I use it occasionally, because you still need an official e-mail address for various registrations, and for reciepts for buying stuff online. For actually talking to people, I use AIM of whatever instant messaging system they may use. I've considered creating a new AIM identity just for clients to get in touch with me through, but there isn't much nuance in logging and most don't deliver messages recieved when you're not logged on.

    I wish there was a way I could relegate Internet e-mail to the same status my mailbox has. Namely, flip through to see if there are any bills and dump everything else directly into the trash without bothering any further with it.

  46. Cable Modem's also by DJStealth · · Score: 2

    This has been a problem for me for months.

    My server on cable (IP is relatively static, changes every 6 months or so) has been unable to send to aol.com or compuserver.com for over 3 months.

    I found a workaround by using /etc/mail/mailertable and finding someone willing to relay all my aol & compuserve mail for me.

  47. How about a new mail protocol? by TheMonkeyDepartment · · Score: 2, Interesting

    As one of the nameless multitudes who receives thousands of "Get Rich Quick," "Gallons of Cheap Viagra" and "Teen Sluts With Shaved *****" spams, I have been wondering something for a while:

    What's the feasibility of coming up with and implementing a brand new mail protocol -- one which somehow prevents (or at least extremely complicates) the transmission of bulk, unsolicited mail? On the server level, you could build in source address verification (so spammers couldn't disguise the source of the mail) and bandwidth limitations -- so for example, someone sending out 1000 emails could do so, but with a geometric lag for each mail they send. (Isn't this called a "tar pit"?)

    In other words, since e-mail was invented in a time when spam didn't exist, it seems like we could improve upon the protocol considerably and make it harder for spammers to do their dirty work. Not being an SMTP expert, I don't know what this would require -- perhaps someone could fill me in?

  48. Re:Blocking Mail Servers that don't have Reverse D by juuri · · Score: 2, Insightful

    Blocking reverse is fine; make your ignorant ISP fix your service.

    --
    --- I do not moderate.
  49. Several problems with this... by apexchin · · Score: 2, Interesting

    Ok, normally I'm all for the liberal "screw the big corporation" /. agenda, but there are several problems in this case... 1. The RBL (specifially the DUNS list) has been advocating this very thing for years now. Many administrators (yours truly included) find it to be the most useful of the spam-blocking lists. So tell me again why is it suddenly bad when AOL does the same thing as DUNS by their own accord? 2. No self-respecting ISP is *ever* going to block mail from AOL. Because they respect them? No.... because of the potention legal liability in blocking such mail without permission of each and every one of their users. E-mail has long been held to be the most protected of the Internet services in courts... screw with that at your peril. 3. It's an easy work-around. Someone has already posted the sendmail fix, here's the one for qmail. In /var/qmail/control/smtproutes add the following line (yes, with the preceding colon): :mail.yourisp.net 4. My guess is the AOL user agreement specifically prohibits running servers of any kind on residential dialup/DSL service. Don't like it? Then either a) hide those servers better (non-standard ports) or b) find someone else to take your money. That's all, have a nice day. Jeff My

  50. No, it's NOT a good move, censors lists and boards by SuperBanana · · Score: 4, Informative
    If you have DSL you should still use your upstream SMTP server for outgoing mail.

    If I did that, I'd be accused of spamming by my ISP, since I run a VERY high volume mailing list. We have approximately 12 lists; the bigest list has 1,500 subscribers and gets about 100 emails a DAY. We have another major list that's about 500 people and similar volume.

    About 90% of incoming SPAM on my box originates from Windows boxes on DSL lines with open relays.

    99% of MY spam comes from chinese and eastern european ISPs that don't give a crap what people do with their internet connections. The solution is not blacklisting DSL and cable connections(because, among other things, it's not easy to switch, unlike dialup.) The solution is cutting off bad ISPs from backbones...but that's not likely to happen any time soon, because the backbone providers don't give a crap- every packet is money in their pocket, regardless of what kind of packet it is.

    And guess what? If you are getting lots of spam from DSL/Cable users, it's really easy to solve. Report it. If there's a report of spam, the ISP disconnects the customer until they fix it. Imagine how fast people will learn to keep their machine clean if their internet connection goes down. ISPs will whine about the work, but, gee, that's like the gas station attendant whining about having to give directions to people all the time. Comes with the territory, bub.

    It's ignorant people like you(who think "since -I- don't need to send mail directly, neither does anyone else!") that cause people like me grief.

    We get next to NO money from subscribers to pay for costs- $5 donations here and there. DSL and Cable offer a nice, cheap way to host a mailing list, or a webboard; we don't use very much bandwidth at all, and occasional hiccups aren't a problem, especially given the design of SMTP; if at first you don't succeed, try, try, again. Commercial DSL is just less down bandwidth, slightly more up bandwidth, a 'real' static IP instead of a DHCP-assigned address that basically never changes...and a HELL of a lot more expensive. Oh, and instead of telling you to go screw yourself when you scream at them for your line being down, they -politely- tell you there's nothing they can do(and, by the way, -please- go screw yourself.)

    Luckily, we're sucking bandwidth off a hosting company that has graciously allowed the box to sit off their network- but if they tank, we'll be screwed- commercial hosting runs about $90+ or more, and our box isn't rackmountable, so there's another $25-50/mo.

    Slowly but surely, the media companies are doing their best to squeeze out other sources of competition- the little guys. Check your Terms of Service/Acceptable Use Policy. My home connection(ATTBI, now Comcast) has banned "messageboards and mailing lists" for years, along with FTP, web, mail, IRC...and specifically states it's an "entertainment service", and I am a "consumer" of that service- ie, sit down, shut up, and be a good little consumer of mass web media. How dare you produce your OWN media...

  51. I AM MAD AS HELL ABOUT THIS by CaptainSuperBoy · · Score: 3, Funny

    Having zero background information on this topic, I am prepared to make an indignant response to AOL's clear violation of YOUR RIGHTS ONLINE! AOL has blatantly violated YOUR RIGHTS ONLINE by deciding not to accept mail from dial-up and residential DSL IP addresses! Dammit, I am sick and tired of providers who think they have the right to do what they want with servers and pipes that they pay for! They are obviously violating my right to free speech by censoring me with their heavyhanded spam-fighting measures! They are probably going to use the DMCA to defend this decision! My guess is the RIAA is behind all this! If we don't all get up in arms about this blatant violation of YOUR RIGHTS ONLINE, next thing you know there will be an AOL camera in your TOASTER OVEN! You will have to ask AOL permission to GO TO THE BATHROOM!

  52. This Explains by Lucas+Membrane · · Score: 2, Funny

    Today I started getting about a dozen bounced emails per hour that I didn't send. Some spammer promoting a penal enlargement scheme was using my return address. This has happened before, so, ho hum for now. Funny thing, all the bounces were coming from AOL. I figured that somehow the spammer was just targetting aol patrons with his mass mail. Maybe not. IDK.

  53. No, you did not by autopr0n · · Score: 4, Informative

    There is no way to Spam from AOL/Yahoo or Hotmail. It's physically impossible for a common user to do it.

    What is possible to do to forge a 'from' address in an email header. Look again at the emails you have in your spam bucket and look at the recived-from: header. I'll bet you $100 they didn't come from anywhere with a '.yahoo.com' at the end.

    --
    autopr0n is like, down and stuff.
  54. Excellent point by KMSelf · · Score: 4, Informative

    I hadn't considered that, but they've got a $1 billion interest in just that area.

    --

    What part of "gestalt" don't you understand?

  55. Spam Wars, Part III by shadowbearer · · Score: 2, Funny


    Spam Wars, Part III

    The AOL Empire is nearing completion on the Death CD. In alliance with the
    other local Empires, they have conceived of a plan to end the mechanical menace
    of millions of spambots spread thruout the galaxy, by cutting off transmission
    between the bots, they hope to cut their communications and cripple them.

    In other news, the Rebel Alliance commanders are furious."We use the same
    channels! We must strike back!" Does this spell doom for the galaxy, or finally
    freedom from the menace of the spambots? Tune in later for our special report.

    --
    It's old. The more humans I meet, the more I like my cats. At least they are honest.
  56. Terrible Move by billstewart · · Score: 2, Insightful
    No, that's a terrible move. (Begin Rant: It's the kind of thing advocated by Enemies of Unix who think that everybody on the net should be a Couch Potato Infotainment Consumer instead of a first-class citizen. End Rant.)

    The only reasons you should be using some other server to transmit your mail instead of doing it yourself are

    • Your connection isn't reliable enough - That's a problem for dial, not DSL.
    • Your machine or mail delivery software isn't connected reliably enough to handle reattempts on messages that didn't get delivered successfully the first time - Laptops have this problem, and it _is_ easier to write mail client software that hands everything to a proxy server than software that tries direct delivery first and then falls back to using the proxy.
    • Your mail software isn't smart enough to handle complex deliveries - That was a real problem back when we had UUCP and Bitnet and other non-SMTP mailers in common use and the Internet was only for universities and defense contractors, but we've fixed that problem, though some mail client software isn't smart enough.
    • They're providing a service you don't want to do yourself - Maybe some kind of timestamping or notary service or encryption gateway or anonymizer or tunnel into your corporate Intranet.
    But that's about it.
    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
  57. when was teh last time you were outside? by Anonymous Coward · · Score: 2, Informative

    Try sending 2 oz letter 3500 miles for $0.36

    US Mail is .37 + .23 each additional oz.

  58. Selective relaying with sendmail by Piquan · · Score: 4, Informative

    My ISP has not shown that its servers are reliable. I like to be able to use mailq to see what's backed up. I'd also like to be able to use my own mailer's parameters for bounces. There's lots of reasons to prefer to use your own mailer instead of your ISP's, even if you technically could use your ISP's. But now, you'll want to relay through your ISP for all the mail that AOL won't accept, while sticking to your own SMTP services for everything else. That's what this document is for.

    I encourage people to write corresponding documents for other MTAs. Also, some people can only send mail through their ISP with their ISP-assigned username. It's possible to configure sendmail to adapt AOL-bound mail to have the ISP-assigned sender. That is not discussed in this document; email me if you need it, and I'll write a followup post.

    HOWTO: Configuring Sendmail to use your ISP's relay for AOL

    This uses the sendmail mailertable feature. The mailertable feature allows you to specify the mailer and relay parameters for individual domains. That's exactly what we need here.

    1. First, you'll need mailertable support in your sendmail config. Grep your sendmail.cf for the string "Id: mailertable.m4". If it's in there, you've got it and can skip the next step.
    2. Since you don't have mailertable support, you'll need to add the following line to your .mc file:
      FEATURE(mailertable, `hash -o /etc/mail/mailertable')
      Note that the first quote is a backquote! After you do this, you'll need to rebuild your sendmail.cf file. (On FreeBSD, you can just run 'make' in /etc/mail to do this. You can also use the following command (it's on one line):
      m4 -D_CF_DIR_=/path/to/sendmail/cf/ /path/to/sendmail/cf/m4/cf.m4 sendmail.mc > sendmail.cf
      You'll need to put sendmail.cf in its proper place, usually /etc/mail but sometimes /etc or elsewhere.
    3. Create a file /etc/mail/mailertable. In it, add lines like the following:
      aol.com esmtp:relay.my-isp.net
      earthlink.net esmtp:relay.my-isp.net
      Fill in relay.my-isp.net with your ISP's relay hostname.
    4. Rebuild the mailertable file. On FreeBSD, you can just run 'make' in /etc/mail to do this. You can also use the following command:
      makemap hash mailertable.db < mailertable
    5. Restart sendmail. On FreeBSD, you can just run 'make restart' in /etc/mail. Other OS's may vary.

    Remember that some ISPs may require you to use your ISP-assigned email address to relay through them. This won't help with that, but there's easy solutions for it. (This sort of thing is where Sendmail rocks.) Email me if you need it, and I'll post a followup.

  59. If you want residential mail, do it right. by nrozema · · Score: 2, Insightful

    Why again would one have a mail server on a dynamic IP? If you want to host your own mail, do it the right way and get a static IP address and an ISP that will host reverse DNS for you.

    This is what I'm doing, and haven't had any problems being blocked by the big boys. I would assume their filters are pretty basic... probably finding a dhcp-* or the likes during a reverse lookup is how they're doing their filtering.

    In CA at least, there's just no reason to give your broadband money to one of the 800lb gorillas with so many third party providers willing to give you a static IP and things like reverse DNS hosting for a tiny premium over the *Bell services. If your chosen broadband provider won't allow you to relay mail to addresses other than their own, then why again are you paying them so much money every month?

  60. For those of you who think this is okay . . by bedouin · · Score: 2, Informative

    Let me just point out a few things:

    1) Although I've never used my ISP's mailservers for outgoing mail, my friends have -- and mail is constantly lost, or delivered hours late.

    2) Likewise, my ISP's incoming mail servers are frequently down, losing mail, and full of spam (the address was either harvested or sold, I don't know which. I have evidence of it, but that's another thread). A couple of my own local accounts suffer from spam as well, but I managed to install Spamassassin, which must be too difficult for my ISP.

    3) Privacy is a concern with me, and I'd prefer to handle mail transactions myself.

    4) I like the reassurance of looking through my Sendmail logs, knowing that an important message was delivered, and if it wasn't, the reason why.

    5) Although this is unrelated, my friends often complain of outages when my service is fine. The reason? My ISP's DNS servers are constantly screwed up, yet I run my own.

    6) I run majodomo to host a small mailing list of 20 of so members (that moves perhaps 500 messages a month); that's not enough traffic to justify having it hosted somewhere else, and Yahoogroups butchers messages with advertisements. Luckily none of its members use AOL.

    7) I check my mail logs often (to make sure nothing unordinary is going on), and do not allow relaying.

    Many of us run mail servers simply because our ISPs are unreliable. Many ISPs can't even host a measly 5mb of web space adequately, so I feel weary letting them handle important E-Mails. I wish Speakeasy was available in my area, it would be a no-brainer switch.

    You've probably heard the saying, "tolerating excesses in order to preserve freedoms." Well, Spam is an excess -- a very horrible excess. At the same time, enough people use home mail servers for justifiable reasons that outlawing them, or blocking mail from them isn't a logical decision.

    And besides, there's other ways to prevent spam without making anyone unhappy. Spamassassin, once configured correctly, nails just about all spam. My university filters spam on my POP account, and I receive maybe one (if that) a month; couple that with Mail App's built in filtering and I haven't actually seen a Spam message in months. The best way to get rid of spammers is to implement solutions that make their efforts ineffective on ANY level, not just by killing off one of their hundreds of other options (AOL's method).

  61. Funny... by BrokenHalo · · Score: 3, Interesting

    My MTAs have been set up to blackhole AOL mail (on a whitelist basis) since about 1997 or 98 :-). I had almost forgotten... At that time, I was getting a heap of spam from their domains, and as I'm in Australia and AOL doesn't have a significant coverage here it's pretty safe from false positives.

  62. good step, now proceed to next... by hhknighter · · Score: 2, Interesting

    ban their own marketing morons from sending those damn AOL CDs.

    Those things serve the same purpose as Spam: "If you spam them, they will come"

  63. Terms of service by xihr · · Score: 2, Insightful

    And what's AOL's terms of service for servers hosted from their residential customers? Most broadband ISPs have limits. If they're just enforcing parts of the TOS that were already present when you signed on, you've got nothing to complain about.

  64. ms renenwing dns by benk0027 · · Score: 2, Funny

    MS did forget to renew hotmail one year. they actually sent the guy the 35 bucks who did it for them

    quote: 'I wanted my email!' -- that guy

  65. Re:Say what? by BrainInAJar · · Score: 2, Insightful

    You can't sue someone for not complying with an RFC, or any other kind of standard (unless there's a patent of some sorts on it, a la CD's).

    If you could, MS would've been out of business a long time ago.

    And blocking AOL is a way to get them to realize that they're being dumb about it. Their customers will soon realize "hey, I can't get mail from or to anywhere... wtf?" and switch to an ISP (AOL is *NOT* an ISP.)

  66. Crackpot theories debunked... (Film at 11!) by Karl+Cocknozzle · · Score: 2, Interesting

    I'm on a cable modem and it doesn't accept mail from my mail server either... If I try to send to my friend's Compuserve (owned by AOL now) address... I'm on a cable modem. The way the message is phrased, they make it sound like I'm the cause of the spam woes... I mean, that is just ridiculous. My server is secured, I am very selective about who is allowed to relay.

    Here's the message it sends back as it appears in my mail server log:

    00:08:31 5 SMTP-409(cs.com) Disconnect Received
    00:08:31 5 SMTP-409(cs.com) Disconnect Confirmed
    00:08:31 4 SMTP-409(cs.com) Input Line: 550-The IP address you're using to connect to AOL is either open to the\r
    00:08:31 4 SMTP-409(cs.com) Input Line: 550-free relaying of e-mail, is serving as an open proxy, or is a dynamic\r
    00:08:31 4 SMTP-409(cs.com) Input Line: 550-(residential) IP address. AOL cannot accept further e-mail\r
    00:08:31 4 SMTP-409(cs.com) Input Line: 550-transactions from your server until either your server is closed to free\r
    00:08:31 4 SMTP-409(cs.com) Input Line: 550-relaying/proxy, or your ISP removes your IP address from their list of\r
    00:08:31 4 SMTP-409(cs.com) Input Line: 550-dynamic IP addresses. For additional information, please visit\r
    00:08:31 4 SMTP-409(cs.com) Input Line: 550 http://postmaster.info.aol.com.\r

    --
    Who did what now?
  67. More reasons why this is necessary: by scrain · · Score: 3, Informative

    Let me preface this with a disclaimer. I worked in AOL's mail and anti-spam groups for 5 years, ending back about a 2 years ago. I still keep in touch with the people back there, and I have a good idea what's up, as I still work in the anti-spam 'industry'.

    Not that anyone will see this, as it's on the second page of comments...

    A massive percentage of spam (well over 50%) comes from compromised windows boxes running either trojan software to open ports for spammers to proxy through, software like AnalogX that does the same, or just users who somehow manage to set up a proxy that's open to the world. There's also a big problem with a LOT of the DSL hardware on the market, that allows people to proxy through it transparently, via use of a security hole. Check Bugtraq if you want to find details.

    These broadband connections are where the spammers are headed for anonymity. Yeah, sure, there's still a bunch of big-time professional spammers out there who spam away from their often-moving netblocks. That bunch isn't so hard to keep up with.

    There's also the problem of Klez and other SMTP aware worms that busily want to send you lots of infected mail. Sure, *nix users don't really care about that, but companies like AOL, with a crapload of less-than-savvy users have to.

    It's been this way for 56k dialups for about 3 years or so... but the noise about that only lasted a few weeks, much like this will. If your DSL company can't support your needs, vote with your feet! Switch your service to one that can. If Verizon can offer you service, you can pretty much bet that Covad can too.

    (shameless plug: Check out lmi.net for that stuff.. small companies make for better service, and if you need the medium-sized company feel, go with Speakeasy.)

    So what if you have a contract... if they can't get your mail to AOL with the right domain, it sounds like grounds to break it to me. =)

  68. Bad for Business Customers by rearden · · Score: 2, Interesting

    The biggest problem that I see with this move by AOL is for businesses with their own E-Mail Servers. Many of my clients use Exchange, Lotus, etc as their email server for the groupware features. Since many of these clients are small to medium businees they operate on Business DSL and cable connections.

    There are two problems that I have begun to notice. One, that the DSL and Cable providers are not doing a good job with PTR records and consequently the reverse DNS usually is something like xxx.xxx.xxx.atl.bellsouth.net instead of mail.companyname.com. Secondly, Bellsouth and others are now blocking ALL relaying through their servers that do not end in @bellsouth.net.

    This means that for some of my clients they are being blocked from sending email to AOL. Why? Because for Bellsouth (and many others) having a Static IP means that they simply set a reservation on their DHCP server. This means that they are "dynamic" IP's even though the companies are paying $10 to $20 more per month to have "static" IP's. Also, these "Business Accounts" are drawing IPs from the same blocks as residential IPs. In one case the IP address for my client at home (down the street from his office) is usually only a few numbers off from his mail servers "static" IP.

    While I can understand why AOL is doing this, I do not see how this solution is going to fix things. AOL is assuming that the problem is ignorant users and malicious spamers and that ALL ISP's are doing things like they should. We all know this is not true. Many T1 providers do not even setup proper Zones and PTR's for the IP's. On smaller ISP providers there is often no differentiation from Dynamic IP blocks and Static blocks, as they also use "reservation" based systems.

    The flaw in AOL's thinking is that they can fix a broken protocal by filtering messages based on RFC's being followed by ISP's. I dont see this working well for long.

    IMHO

    --
    Huh?
  69. We did this to ourselves by EvilAlien · · Score: 4, Insightful
    Thats right, its not just DSL as the article title suggests. Its broadband. You know what broadband is, its a high-speed network of misconfigured proxies, infected Windoze boxes, and Denial of Service agents.

    IMO too much time is spent ranting about how Tha Man is keeping the $30/mo broadband user down by not allowing the minority who know how to run a secure server to use their residential line as a commercial line. We should be putting a hell of a lot more energy bitching about the masses of clueless users who randomly click on any email attachment they get, setup their P2P apps in slut-mode, and otherwise connect to the Internet in such a way that they become:

    1. just another hop for viruses to propagate through
    2. just another misconfigured AnalogX proxy or Lovgate infected SMTP/NNTP open relay
    3. just another DDoS drone host
    Its sad, but the majority of broadband users have forced this action. If people understood the concepts of due diligence and responsibility we wouldn't have David Ritz and others spending huge amounts of time battling USENET spam, ISPs getting slammed with DoS all the time (and I mean that litterally), and spam gangs doing automated scans of broadband networks for open relays so they can spread their email polution.

    Its a myth that spam only comes from networks in Asia that don't give a damn. It comes from Ma and Pa's Windows 98 box that got infected with one of several variants of Lovgate and helps spam the planet, all from their speedy little DSL/cable connection.

    Before the /. community jumps down AOL's throat at this carpet-bomb tactic, we need to realize that it is a business response to the realities of security on broadband networks. If users took responsibility for their connections and had good firewalls, anti-virus and intelligent email practices then this problem probably wouldn't exist.

    --
    perl -e 'print $i=pack(c5, (41*2), sqrt(7056), (unpack(c,H)-2), oct(115), 10)'
    1. Re:We did this to ourselves by Tackhead · · Score: 2, Insightful
      > Its sad, but the majority of broadband users have forced this action.

      *applause*

      It's partially the fault of the residential lusers, but it's largely the fault of their ISPs' negligence/

      If ISPs had blocked outbound port 25 from residential broadband from Day One -- the same way they were already blocking outbound port 25 for residential dialup cusomters -- we wouldn't have this problem.

      By default, port 25 should have been blocked on residential DSL and cable modems.

      That would rid the world of spam bounced off open proxies from the 99.9% of residential broadband (l)users who have neither the desire nor the intention to talk SMTP through anything other than their ISP's central mail server.

      You're a user, not a (l)user? You wanna run an SMTP server on your own? Call your ISP and ask for the block to be removed, and voila, it's removed.

      The ISPs had a choice: Block port 25 and hire 100 call center serfs to unblock on request, or not block port 25 and hire 10000 abuse desk serfs to deal with the deluge of spam. (Result: ISP pays to hire 100 people, and you do get to run your own mail server, because traffic from your netblocks is still worth listening to.)

      The ISPs choose poorly - With a budget to hire 100, they hired a woefully inadequate number of abuse desk serfs, and ignored the rest of the complaints.

      The result - your ISP is still out the costs of hiring 100 drones, but I'm deluged with spam, and 4.0.0.0/8, 200.0.0.0/6, 12.0.0.0/8, and 24.0.0.0/8, along with others, are netblocka-non-grata. You wanna talk to my port 25? Talk to the 550, man, because your ISPs negligence (in protecting my inbox from the predictable cluelessness of your neighbors) ensured that my MTA ain't gonna be listening.

    2. Re:We did this to ourselves by cpmte · · Score: 2, Insightful
      Sounds like you work for Microsoft.
      because it's convention, it does not mean that it has to be followed