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Building A Better Inbox (Updated)

vudujava writes "c|net is reporting that a new free (Update: not free, actually, read more for details.), web based email service is opening it's doors today. They promise to deliver "100% spam free" email to their users by using a challenge-response system to all incoming, first-time mail. Catch the entire story here. Although the idea isn't new, it shows that we are notching up the "war on spam"." Alert reader George Hotelling points out this post on Politech which may give you pause when it comes to the new mail service's Terms of Service. And kraksmoka writes "As reported on this article on MSNBC : 'Hotmail subscribers are now limited to sending only 100 messages a day "in an effort to prevent spammers from using Hotmail to spread spam," said Lisa Gurry, MSN lead product manager.'" dlanod writes "In your snippet on the main page you report mailblocks.com as "a new free, web based email service". Looking at Mailblocks' site, it actually costs $9.95/year for the standard service, or $24.95/year for the expanded service with no free option listed (https://app1.mailblocks.com/register.htm)."

74 of 371 comments (clear)

  1. Definitely not new by jbellis · · Score: 5, Informative
    I've contributed code to TMDA, a python implementation of this idea that's been around for over two years. The earliest I know of though is a C implentation called mapson. It was abandonware for a while, but it's apparently been resurrected on sourceforge. I _think_ the original version dates from the '90s.

    BTW, mailblocks.com isn't free; it's $10/yr. However, that's still only half what fastmail.fm charges annually for their spam filtering service (with SpamAssasin).

  2. UN resolution #4882372 by Anonymous Coward · · Score: 4, Funny

    This undeclared "war on spam" is unauthorized imperialist aggression!

  3. Not Free! by MiTEG · · Score: 5, Informative

    Mailblocks is not free! They charge either $9.95 or $24.95 a year depending on the file size limitation you choose.

    --
    The future isn't what it used to be.
  4. Call It A Night, Cowboy! by sulli · · Score: 4, Funny
    Because limits on posts work so well for the slashdot trolls.

    Seriously, who spams from Hotmail anyway? Don't all the real spammers use custom software with a built-in smtp server? I've gotten enough spams advertising it, after all.

    --

    sulli
    RTFJ.
    1. Re:Call It A Night, Cowboy! by phorm · · Score: 2, Interesting

      You can spam from hotmail without using the web-client, since it has an interface for using /w outlook etc (http mail still though I think).
      However, I myself don't get many *hotmail* spams, and many which I do are forged headers and not real hotmail addresses.

      Limiting regular customers to emails-per-day actually sounds like a really good idea to me, so long customers sending mass mail (usergroups, proper mailing lists, etc) were able to sign up for a "special account" allowing them to continue. I don't know many normal people who would send >200 messages a day, and not many spammers who might bother to identify themselves when signing up for a special "mass-mail" account.

    2. Re:Call It A Night, Cowboy! by localghost · · Score: 3, Insightful

      Domains in today's batch of spam:

      yahoo.com (3)
      hotmail.com (2)
      earthlink.net (1)
      popstar.com (1)
      hot-shot.com (1)
      ayna.com (1)
      voile.net (1)
      bigfoot.com (1)
      mindless.com (1)
      amexmail.com (1)
      forum.dk (1)
      servadmin.com (1)

      Some of those are faked, of course, but it would seem that a lot of it comes from free providers.

      (And thanks to SpamAssassin, none of that made it to my inbox)

  5. Yahoo by SpamJunkie · · Score: 5, Informative

    I've been using yahoo mail for a while now and it is virtually spam free. The built in filter is great. Occasionally one makes it into my inbox, we're talking one every two or three days, otherwise they pile up in my bulk mail folder.

    It's so good I paid for a year of mail plus. I didn't even do that for .Mac and I'm a os x geek.

    1. Re:Yahoo by Jens_UK · · Score: 4, Informative
      The built-in filter is far from perfect. Currently, I am getting loads of messages with just a single image routed to my inbox, rather than the bulk mail folder. Thankfully, Yahoo! does let you block images, so it doesn't load them and confirm your address. Newer accounts (eg., family members) seem less prone to this, perhaps because their addresses haven't been out in the wild as much yet.

      For conventional text spam, the filters are decent and route most to the bulk mail folder.

    2. Re:Yahoo by Malc · · Score: 2, Interesting

      It's not perfect, but it is fairly good. I would say it blocks greater than 90% of spam. I was impressed enough that last year I paid them money for the service. I use their automatic SMTP forwarding, and filter on the header X-YahooFilteredBulk. I personally wish they would just block everything they tag rather than forward it to me, but oh well. At some point I'll stop using my Yahoo address and just stick to unique aliases on the domain I own. After so many years of using my Yahoo address, I'm just a little shy of changing it in case I lose touch with somebody.

    3. Re:Yahoo by Ratbert42 · · Score: 2, Informative

      I have 4 addresses forwarding to Yahoo. One (a bigfoot account) is at least 6 years old. For me, Yahoo's spam filter blocks about 40-60% of incoming spam and about 5% of legitimate incoming messages. So it's essentially useless for me.

    4. Re:Yahoo by civilizedINTENSITY · · Score: 2, Interesting

      I average closer to 10 spams/day @yahoo.com. Whats more of an issue is that their spamblock sends IBM DevloperWorks and movingon.org emails into the bulk mail folder. I've sent these to yahoo for "review", where they should realize that 1)I've signed up for these notifications, and 2) Its easy to opt-out. Repeated "reviews" still result in spam in my inbox and real email in my bulk folder. Which means I can't just delete everything in the bulk folder. Since I have to look at all the headers first, whats the difference? Yahoo sucks. When it was young it was fun, but now its just sad.

    5. Re:Yahoo by maxume · · Score: 2, Interesting

      Not a huge fan of yahoo myself, but I do believe that they still let you have a few filters, even without paying. Yep, just checked it, click on Mail --> Options. Select filters, figure out a way to send the stuff you want to your inbox, no more digging through Bulk Mail.

      Also, I don't really think that sending a mail for 'review' gets a pair of human eyes, but more is more likely combined with other submissions and used to adjust filtering techniques and training...

      --
      Nerd rage is the funniest rage.
  6. Stupid by transient · · Score: 5, Interesting

    Um, so let me get this straight. They challenge all incoming mail except for the spam they've been paid to let through? And this is an "inseparable" part of the service?

    Next, please...

    --

    irb(main):001:0>
  7. Yeah, this system was invented by SolidBlue by Ace905 · · Score: 5, Informative

    It really pains me to see the amount of competition *and* press coverage our competitors are getting.

    We invented this system for authenticating email, and we've had a product on the market for 2 years now making use of it.

    We have the most affordable service available still. It's one thing for competitors to realize our idea is the solution - it's another thing for the media to ignore the origins of the system completely.

    --

    Ace
    1. Re:Yeah, this system was invented by SolidBlue by Ace905 · · Score: 4, Interesting

      I've spent enough time distributing marketing material to every computing news source you could imagine.

      Our web site talks about the advantages of our product. My point isn't why our software and service is better, CNET hasn't even begun to offer their service - so an argument over why ours is better wouldn't really make sense.

      My problem is media coverage of the big name software companies. Maybe you haven't tried to make a software project fly on your own with a tiny budget, an incredible idea and rock solid code.

      Let me tell you, it's hard.

      --

      Ace
  8. Internet Explorer Centric by pheph · · Score: 3, Informative

    When I go to sign up using Mozilla on Linux, I get a JavaScript pop-up that reads:

    "Mailblocks may work with other browsers, but it is only tested using Internet Explorer"

    Anyone tested using other browsers? This sort of thing was never anticipated when people were excited about the Internet...

    1. Re:Internet Explorer Centric by pheph · · Score: 2, Insightful

      Perhaps it isn't so bad for those who use 'Other browsers' less than 100% of the time.

      I'm not asking web developers to develop for Mozilla, or Opera or Internet Explorer... I'm asking them to develop based on standards! 95% of the web works on 'other browsers', why can't the other 5% ?

    2. Re:Internet Explorer Centric by walt-sjc · · Score: 2, Funny

      Bill? Is that you?

  9. These services won't work for many of us. by matt[0] · · Score: 5, Informative

    I own a small business and much of my client correspondance is via email. That means, I have to run my own IMAP server and I have 200 mb of mail on the server.

    Someone would do well to offer this service with your own domain (if you change your MX record), IMAP and reasonable charge for each 50mb increment of disk space. This is yet another web mail service, only this one is hosted off of a MSFT server and it implements intrusive spam blocking. SPAM Assasin works very nicely, I've found.

    *yawn*

    --
    --------- Matt
  10. Now this is what I prefer to see... by questamor · · Score: 4, Insightful

    ...rather than government legislation. It doesn't matter how much one country's government may ban spam, if it still comes from outside it's still going to come in time and time again.

    This setup may not be perfect, but to me it's a step in the right direction. Working towards a system that doesn't allow spammers to exist is wholly more admirable.

    --

    Curiously, why were open relays ever in existence? And once spam started, why were open relays kept around? Is there a use for them? Why not have all mail servers require authentication for outgoing mail, much like POP retrieval. That would have to stop a great deal of spam

    1. Re:Now this is what I prefer to see... by JohnLi · · Score: 3, Informative

      I don't know the history of open relays, but I do know that I worked for a hosting company that tried unsucessfuly for almost a year to secure the mail server(s). When we finaly did get it set up, it was a support nightmare. People didn't read the emails that we sent explaining the new system and were freaked out when it was trying to authenticate them when they were sending. An important side note is that these were all nt4 boxes.....I suppose that was most of the hassle, but still, all it takes to buy a server and some bandwidth is a credit card. It takes a little more than that to set it up properly. All goes back to human error being 99 percent of the problem I suppose.

      --
      The / in /. would be more accurate if it leaned to the left. http://www.metricnut.com
    2. Re:Now this is what I prefer to see... by ePhil_One · · Score: 3, Interesting
      This setup may not be perfect, but to me it's a step in the right direction. Working towards a system that doesn't allow spammers to exist is wholly more admirable.

      The spammers will just build an automated response system. Plus, this thing could no be used as a source for a DOS attack, since its happily generating emails. And god help us if they ever decide they need to sell their "contact list to be profitable, since to work it must have a list of every person who might email you. And hopefully they've considered the feed back loop as service A asks for a confirmation of the confirmation email service B just asked for... :^)

      Yeah, I think I'll give this a pass

      Curiously, why were open relays ever in existence? And once spam started, why were open relays kept around? Is there a use for them? Why not have all mail servers require authentication for outgoing mail, much like POP retrieval. That would have to stop a great deal of spam

      Yes, it would. The idea is you send a single mail to the open relay with a huge list of recipients, the server then burns its bandwidth sending 900 copies of that mail. Not to mention it gets to deal with all the bounced emails messages, etc.

      So why do they exist?

      1) Best compatibility. Not everything understands how to authenticate SMTP.

      2) Firewall compatibility. Some firewalls don't allow authenticated SMTP in more secure modes

      3) Traveling clients. If your client could concievably pop up at any IP, its very difficult to filter access by IP, the usual method of blocking unauthorized access

      4) Don't fix what aint broke. If its working, some folks are hesitant to make changes they aren't comfortable with.

      5) A workaround opened a previously closed relay. Spammers have gotten tricky in fooling Mail relays into forwarding their spam. there's a lot of ope relays that were closed when originally set up.

      6) Philosphical reasons. Folks may wish to provide a service that bypasses listening in by corporations or governments

      I'm not going to argue the validity of these points, I'm just pointing out some of the possible why's...

      --
      You are in a maze of twisted little posts, all alike.
    3. Re:Now this is what I prefer to see... by kill-hup · · Score: 2, Interesting
      The spammers will just build an automated response system.

      Good. I'd love it if they did. That way, we'd have a "good" return address with which we could track them down. Right now, I'll bet a very large percentage (approaching 100%) of U[B|C]E has a fake return/from address.

      --
      Sinepaw.org: Grape Winos
  11. This seems... by Shant3030 · · Score: 5, Insightful

    Like a very annoying email service. Doesnt this kill speed advantages of email? I would hate to send an email out, and have to go through more red tape so the recipeint can receive their email. The sender would be doing all the work to help solve the recipients spam problem.

    What about the mass emails I like to receive, such as newsletters?

    --
    100% Insightful
  12. Only 100, eh? by EvilStein · · Score: 3, Insightful

    So, they simply create more Hotmail accounts and send out more spam.

    Besides, I've never actually had spam *from* Hotmail - it's usually going *to* my Hotmail account or spam coming with forget Hotmail headers.

    I seriously doubt this is going to do very much to curb spam.

  13. Um...no by Ant2 · · Score: 3, Informative

    1. Services. Mailblocks provides a fast, low-cost email service to its users. The Services also include online calendar and address book features, and other features may be added in the future; unless expressly stated otherwise, any new or enhanced features will be subject to the then-current version of this Agreement. In exchange for your use of the Services, you expressly permit and authorize Company, and such third parties as may be authorized by Company, to furnish to you from time to time, through the Services or any other means, with information prepared by Company or by (or on behalf of) other entities, including advertisements and solicitations (such information, "Third Party Content"). You acknowledge that such Third Party Content is an inseparable part of the Services, and that furnishing such Third Party Content to you cannot be terminated unless the Services are terminated. All such Third Party Content will be understood to be requested by you through your use of the Services. Some third parties furnishing you with Third Party Content may permit you to "opt out" of receiving such communications from them. However, Company is not responsible for any such party's failure to comply with its own "opt out" policies.

    Company neither endorses nor is responsible for Third Party Content, and you may be exposed to Third Party Content that is offensive, inaccurate, misleading, deceptive, out-of-date, or incomplete. You must evaluate, and bear all risks associated with, the Third Party Content, and your use of and reliance on any such content. We are not responsible for any errors or omissions in Third Party Content, for hyperlinks embedded in Third Party Content or for any results obtained from the use of such content. Under no circumstances will we be liable for any loss or damage caused by your reliance on any such Third Party Content. Your correspondence or business dealings with, or participation in promotions sponsored by, any such third party advertisers, or any other third party providers of goods or services accessed through the Services, and any terms, conditions, warranties or representations associated with such dealings, are solely between you and such third party advertiser or provider.

    We may establish limits and restrictions on the Services, including without limitation, the maximum disk space that will be allotted on your behalf, the maximum number of days that messages will be retained, the maximum number of messages that may be sent or received, the maximum size of a message that may be sent or received, and the maximum duration for which you may access the Services in a given period of time. You acknowledge that Company reserves the right to terminate accounts that are inactive for an extended period of time. You further acknowledge that Company reserves the right to change these limits and restrictions at any time, in its sole discretion, with or without notice.

    COMPANY MAKES NO WARRANTIES CONCERNING, AND ASSUMES NO RESPONSIBILITY FOR, THE TIMELINESS OF DELIVERY, MISDELIVERY, DELETION, CORRUPTION, OR FAILURE TO DELIVER OR STORE ANY EMAIL MESSAGE(S) THAT YOU MAY SEND OR RECEIVE USING THE SERVICES, OR FOR ANY LOSSES THAT YOU MAY INCUR THEREBY.

  14. Question. by Anonymous Coward · · Score: 2, Interesting

    TMDA looks interesting, I'll have to check it out. But what happens when a person using a TMDA-protected email account attempts to contact someone else using a TMDA-protected email account?

    What's to stop there being a cascading ping-pong of confirmation messages? (Or are you supposed to automatically whitelist everyone you send email to?)

    1. Re:Question. by pohl · · Score: 4, Insightful

      I've wondered about that too. You could always manually add the person to your whitelist before you send the initial message.

      What I'm wondering about is how you would buy something online where you can't really predict the address that shipping-confirmations will come from. In that case one wouldn't know what to add to the whitelist, and the odds of a human being on the other end are small...so your TMDA message would probably go ignored.

      Is there a good FAQ somewhere that addresses questions like these?

      --

      The "cue the foo posts in 3, 2, 1..." posts will commence with no subsequent foo posts in 3, 2, 1...

    2. Re:Question. by netsecd00d · · Score: 3, Informative

      With TMDA you can make a 'dated' address which would allow anyone who uses that address to send you an email for a certain amount of time.
      Example from http://tmda.net/config-client.html

      jason-dated-989108708.a17f80@mastaler.com

      This particular address expires on Sun, May 6 00:25:08 2001 UTC, which is exactly 5 days after it was generated. TMDA time intervals can be set in years, months, weeks, days, hours, minutes, and seconds. Once a dated address expires, messages sent there must go through the confirmation process. Use of strong cryptography insures that the timestamp can't be modified.

  15. Exclusive Spam Provider ? by Dave21212 · · Score: 4, Informative


    Wow, definitely read the TOS info...

    It reads more like they wish to charge you $10 to become your primary spam provider, oh and they will also be sharing your personal info with 'their' spammers (3rd parties), which you can't opt-out of.

    Pay to go from bad to worse ? I think not !

    --
    "Whoever would overthrow the liberty of a nation must begin by subduing the freeness of speech."--Benjamin Franklin
  16. Not free according to NYTimes... by jmiles · · Score: 4, Informative

    The article here indicates that this company plans to charge $10/year for the service. Cheap, if the system proves to work, but definitely a different business model.

    Further, it says that the 7 digit passwd will be sent in a "digital image"; kind of a hassle for those of us with text-only email. (long live pine)

    --
    Anecdotal evidence! I'm sold!
  17. SpamCop used to work that way by Animats · · Score: 4, Interesting
    SpamCop used to be challenge/response, but they switched to a "heuristic" system that doesn't work as well.

    Challenge/response systems have the problem that if two parties both use a challenge/response system, they may not be able to communicate with each other at all. The challenge message may not get through. Worst case, they create a mail loop.

  18. Not exactly free... by zaren · · Score: 2, Informative


    Service Pricing
    I want the following Mailblocks service:
    Standard Service -- $9.95/year

    * Standard Service includes 12 megabytes of storage.
    * Promotional launch offer: Buy one year of service for $9.95, receive an extra two years of service for free. That's just .23 cents per month to rid your life of spam.

    Expanded Service -- $24.95/year

    * Expanded Service includes 50 megabytes of storage.
    * Promotion not offered for the expanded service.
    * Can I upgrade later? Sure.*

    --
    Come to the University of Mars! Classes starting soon!
  19. Myrealbox is the best by wonea · · Score: 2, Interesting

    Myrealbox filters the spam, and it is free. Why would you want to pay for something that is already free. www.myrealbox.com

  20. "Patented" challenge-response? by rsidd · · Score: 3, Insightful

    There have been procmail-based autoresponders that essentially do this for ages. You maintain a whitelist, people who are not on it need to reply to an email and then get added to your whitelist.

  21. WAR by Ty · · Score: 2, Interesting
    WAR on terror
    WAR on drugs
    WAR on Iraq
    WAR on ....

    WAR on SPAM

    How American.

  22. MS has ruined the guy by westfirst · · Score: 2, Interesting

    Gosh, I loved the first WebTV even after MS bought them. It was a great, lightweight client with a beautiful user interface, at least for the time. Now the jerk wants to save us from SPAM just so he can spam us himself. Plus, you pay him $10/year and can't avoid it. That's right, the TOS says you CAN'T opt out.

    Memo to VCs: don't fund ex-M$ people. They seem to believe that they can jam any TOS down people's throats.

  23. Disposable Email Addresses -- Effective? by angle_slam · · Score: 3, Interesting
    The last time I posted this question, it was late in the discussion and didn't get many responses. So I'll ask again. Does anyone here have any experiences with Disposable Email Address services? Click the above link to get a more detailed explanation of what it is.
    Briefly, I'll explain how they work in theory. After signing up with a disposable email service, they give you a disposable email address that you can, for example, enter into forms. Mail sent to that disposable email address gets automatically forwarded to your email account of choice. But here's where they supposedly come in handy. You can sign up for a different disposable email address everytime you fill in a web form. If you start getting spam, you can look at the disposable email address the spam was sent to and you can do 2 things: (1) cancel the disposable email address so you no longer get spam sent to that address; and (2) you know who gave out your disposable address and you can take whatever action you deem appropriate.
    Any thoughts?
    1. Re:Disposable Email Addresses -- Effective? by neilsly · · Score: 4, Informative

      http://www.spamgourmet.com

      Allows you to 'create' an e-mail address, consisting of x.y.username@spamgourmet.com where x=a unique identifier for the e-mail address you're creating, y is the number of times e-mail may be sent to the address before it gets forwarded into /dev/null, and username is .. obviously your username.

      a little complicated - but go and sign up, it's free, it works...

    2. Re:Disposable Email Addresses -- Effective? by pimephalis · · Score: 2, Informative

      Actually, you can use this approach to another end as well. If you want to buy something from indigo books, for example, create and use the email address indigobooks@yourdomain.com for the transaction. If you later find that you're getting spam to that address, you have a good idea of who sold/leaked your email. Great way to build up and work a bitch-list of slimy companies.

      --
      Talk about a blinding glimpse of the perfectly obvious ....
    3. Re:Disposable Email Addresses -- Effective? by g0_p · · Score: 2, Informative

      Fastmail.fm has something similar. They set up a sub domain of the form yourname.fastmail.fm. Any mail sent to this sub-domain comes into your mailbox. The way this works is that you would give a mail-id like say foldername@yourname.fastmail.fm to potential spammer (website forms etc..) and all such email will come into a folder called "foldername" in your mailbox.
      Though this facility is not there with the basic service it is there with the one time payment service. Pretty neat stuff.

  24. secure? by hey · · Score: 4, Informative

    mailblocks says "All login information is sent securely to the Mailblocks server."... but I don't see any "https:". I tried signing in with a bogus userid/password just to see if I got a SSL response but no. Am I missing something?

    1. Re:secure? by panaceaa · · Score: 2, Informative

      It uses HTTPS. Search for "https" in the source code, and you'll see they dynamically create a URL for the submit action. It takes a parameter called "secure", so technically non-secure URLs could be created, but the function (FixFormAction()) always receives secure=true.

      Also, I sniffed the login traffic doing the same sign-in process you did, and the form was submitted with HTTPS. I don't know why you couldn't detect this.

  25. ToS translation by Limburgher · · Score: 2, Funny
    We are committed to preventing delivery of any spam (except ours) to your inbox, in an effort to prevent you from being harrassed by anyone (except us) trying to send you unwanted advertising (i.e. not ours).

    Hmmm. No thanks.

    --

    You are not the customer.

  26. if looking for a killer online mail service by thrice · · Score: 2, Interesting

    try out oddpost

    http://www.oddpost.com

    it truly is the best web based email
    i've every used. if you like outlook,
    evolution, eduora, >... you'll feel
    right at home in oddpost.

    pretty cheap too... only $30 a year
    and the 1st month is free. and the
    spam filtering is coming along nicely
    to boot.

  27. It'll block too much by lazyl · · Score: 5, Interesting

    Before allowing e-mails through to your in-box, Mailblocks automatically transmits a numerical password to first-time correspondents. The senders must then retype the code into an onscreen dialog box before the system acknowledges them as legitimate.

    This will block a lot of legitimate mail. You won't be able to subscribe to mailing lists. You can't recieve those "account authorization/activation emails" that lots of sites use. E-cards won't work. You won't be able to to get daily comics. Bascailly, any system where the mail is sent by an automated system won't work. There are probably others I can't think of.

    --
    Aw crap, ninjas!
  28. you invented this? not. by jbellis · · Score: 4, Insightful

    you invented this idea the way al gore invented the internet. :(

    as I posted earlier, mapson predates any commercial implementation I have seen. I downloaded version 1.0 to doublecheck -- unless yours was written before 1997, or you employ Peter Simons, I'm afraid your claim to being the first doesn't hold water.

    mailblock at least doesn't claim originality, just that they do it better. which may be true; they have a pretty slick "mail siphon" feature going.

  29. Re:you invented this? not. by Ace905 · · Score: 4, Interesting

    Our white paper on the system was published in November of 2001. A challenge-response based system has existed for longer on web sites to prevent automated submissions.

    To offer the system for email requires a more advanced server-client architecture, overcoming challenges such as "what if both systems require authentication" to ensure that Spam still can not get through a 'hole' for this scenario, and finally: The actual challenge-response is being done wrong by almost all of our competitors. A simple dictionary attack could authenticate a spammer for their entire user list.

    We're the longest running email-authentication project (obviously, since we did invent it) and we have a very large list of improvements planned for the system. I suspect these other companies, which publicly lie about trade mark, patent and copyrights to the system (that have never been registered) will take our new ideas and claim to own them as well.

    Only time will tell.

    --

    Ace
  30. Re:Not *all* spam is bad by RembrandtX · · Score: 2, Funny

    all e-mail lists and or mailings should be OPT-IN.
    if a customer opts in .. then yes .. you are correct, their targeted e-mail is acceptable.

    however, if you just happen to 'get' their e-mail for example .. from any of the credit industry companies, or from web trolling etc - assume they are gamers, and send them 'targeted' e-mail, then you are no better than the bastards who call me at 8:00 am on a monday morning because they know I bought a lawnmower last month, and *know* i like outdoor power equipment - and want to sell me more.

    I believe the exact conversation went something like this :

    Telemarketer: 'Mr Walk, I see here that you recently bought an electric lawn mower at Home Depot, I am authorised to offer you an electric hedge trimmer through my company at a steep discount ! Does that sound interesting to you?'

    me: 'I am authorized to remind you that you just woke me the fuck up, that you are to remove me from your calling list, and any calling lists your company uses.'

    Telemarketer: 'But Mr. Walk, this is a great deal .. '

    me: (interrupting) ' I am *NOW* authorized to tell you to remove me from your calling list, and any calling lists your company uses, and to tell you to 'go fuck yourself' *click*

    Now with 'targed' non opted e-mail .. I am denied the simple retaliation of telling someone to go screw.

    So .. *no* its not the same .. and *no* I don't approve.

    --

    --Ne auderis delere orbem rigidum meum, non erravi pernicose!
  31. do you have a reading comprehension problem? by jbellis · · Score: 4, Informative

    I cite a specific example of a challenge-response system for authenticating email dating from 1997, and you reply that since you started in 2001 you are the longest-running.

    way to refute me, champ.

    1. Re:do you have a reading comprehension problem? by Ace905 · · Score: 2, Interesting

      We've decided not to patent the idea, for moral and financial reasons. We believe the system would do better on its own.

      Also, as one of our users posted - there are 3 fairly good reasons why these systems are entirely different.

      server-client architecture
      graphical-text challenge / response vs. file attachment (latter being easy to circumvent)
      accuracy rate. 100% vs. 95%

      Plus:

      Handling of lists through GUI
      Windows Architecture
      blah blah blah.

      All points our original patent lawyer found relevant enought to take our case ; until we decided against a patent.

      Regards,

      -Doug

      --

      Ace
    2. Re:do you have a reading comprehension problem? by walt-sjc · · Score: 2, Funny
      Handling of lists through GUI
      Windows Architecture

      ... And these are supposed to be GOOD things????

  32. Challenge-Response Has Issues by istartedi · · Score: 4, Interesting

    1. It imposes hurles on first-time contacts. Posted your resume and got a response? HR person doesn't have time to answer questions like "what color is the sky" or whatever they use to verify you're human.

    2. Spammers can use it! If they get a challenge they know the e-mail is valid. Then, they can forge senders. If they forge the right sender the spam gets through. If they forge the wrong sender a challenge goes out to the 3rd party. The challenge has to carry a subject doesn't it? Voila! The spammer has hijacked your box and used it to send quickie text messages to 3rd parties. OK, well, maybe you change the subject so that it simply gives the time of the message or something... but then the sender is less likely to recall if he actually sent the message.

    Even if it works, C-R floods the network with with little micro-spams. I for one do not look forward to having my inbox flooded with messages with subjects like "SpamMaster response requested for message you sent 3/24/03" because I never sent the message and some lousy spammer just forged my address in the Sender.

    Maybe they've come up with some ingenious way to fix these problems, but I doubt it.

    --
    For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
    1. Re:Challenge-Response Has Issues by Ace905 · · Score: 2, Informative

      Yes, if you're waiting for an important email with Spam Interceptor you can check your mail cache and manually add the person either before or after you receive the email. Since HR firms always send from the same email address, future correspondence isn't a problem.

      Server-Client based systems ensure spammers don't know which email address is valid. The subject line is included in the email, but with minor changes so an automated strstr isn't going to find it.

      Spammers do not forge legitimate email address as the sender, a very high percentage of spam emails use email addresses with no MX record attached or an MX record set to localhost (ie. doesn't exist).

      The other ones use random addresses, so unless you're askdhjf@asdf.com I doubt you're going to get little micro spams. If you do, you'll receive a total of maybe.... 1.

      Regards,

      -Doug Styles

      --

      Ace
    2. Re:Challenge-Response Has Issues by TonyGreene · · Score: 2, Insightful

      My resume is only posted as HTML. The included email link specifies a Subject that my filters look for. That's good enough for people contacting me via my on-line resume. When I'm actually in the job market, I have a filter that allows subject lines related to jobs. That allows in people who have my email address in a database, or who copy/paste it into a message instead of using the link.

      It is unlikely that a spammer will generate a valid sender. Hoping to generate a valid fake address to deceive my challenge system is too much time/effort for most spammers. In the first place, they would have to include contact info in the Subject of the message. Not likely.

      There is a way to fix this, and it's not complicated, but it will require agreement among mail client developers.

      1. Sender sends message. Sender's mail system records Message-ID of outgoing message in a temporary whitelist.
      2. Recipient's antispam system receives message and issues challenge, including original Message-ID in the In-Reply-To header of the challenge message.
      3. Sender's antispam system receives challenge and notes that it is a reply to one of its owner's messages. The challenge is let through.
      4. Sender responds to the challenge and original message is delivered.
  33. Comment removed by account_deleted · · Score: 4, Insightful

    Comment removed based on user account deletion

  34. and I have some nice swamp land.... by frovingslosh · · Score: 4, Informative
    Lets make sure we have the facts: Here's a free service that costs either $9.95 or $24.95 a year depending on the file size limitation you select (You want a file size limitation imposed on your e-mail, don't you?) and then they take your name and sell it to people to send you the exact thing you're paying to avoid. Sure, that makes sense, but how well will it work? I've considered the challange and response system, but how many valid e-mails will be missed from valid businesses you are doing business with? Do you think Tech Support people you are trying to get a response from will fool with this system, or just delete a validation request that comes back to them? How about rebate confirmation notices? Or adding yourself to a newsletter distribution list? I received an order confirmation for a new notebook just last Friday that came from a "do not reply to this address" e-mail address; I certainly wanted the information in the confirmation message, and I don't expect major on-line retailers will change the way they send confirmations just to suit Mailblocker. How many other important e-mails would you miss if you trusted this system?

    Sure, something has to be done about the problem, but paying for a bad system that will just sell your name to other spammers and will block legitimate e-mail isn't much of a solution and should not be accepted in a desperate I'll try anything approach. I would propose that a simple open season on spammers, with perhaps a six spammer limit so every hunter gets a chance, and even a small license fee to help pay down the national debt, would be a much better approach.

    --
    I'm an American. I love this country and the freedoms that we used to have.
  35. Mailing lists by rf0 · · Score: 3, Interesting

    One thing I hate about this sort of thing is that its quite dumb when it comes to mailing lists. More than once I have written an email to a mailing list I'm on and got back a messages along the lines of

    "foo@bar.com is subscribed to our service. Please click on very long URL to let them recieve your messages"

    Now this means that everyone who posts to that list has to do this for one particular user. Why should they? I'm sure that user has something to say at some point but I don't want/need to do it everytime I post to a list and someone new has joined who uses a similar service.

    Why don't they whitelist the address of the mailing list? That would seem obvious to me. Even mailing lists that allow anyone to post normally have very high signal to noise ratios with the occasional spam.

    Just my pet peev

    Rus

  36. SA still works by ajs · · Score: 5, Informative
    I've been using SpamAssassin for about a year now. It started out good, and got better. Now it's actually a little frightening how good it is.

    If you want to try it out, you will (most likely) need your own machine handling mail (if you're a broadband or DSL user, this is easy enough, I'll assume you've made that step...)

    Now, make sure Perl is installed.

    Now, as root, type "perl -MCPAN -e shell" and follow the instructions to set up Perl's configuration system.

    In that shell, type "install Mail::SpamAssassin".

    Exit that shell and type "/etc/init.d/spamassassin start"

    You will want to do what your OS prefers for making sure this starts at boot time, under Red Hat Linux, that's "/sbin/chkconfig --levels 35 spamassassin on"

    Exit your root shell, and do the rest as your user account.

    Assuming you use sendmail with procmail (see the SpamAssassin site for other MTA configuration steps), put:
    :0fw
    | spamc -f
    into your .procmailrc.

    SpamAssassin is now doing its job. It just marks messages that it thinks are spam. See the example procmailrc on spamassassin.org for more information on how you can move the mail to another folder, delete it, or even more complex things. Also, there's a procmail bug that the example config can help you work around.

    If you're doing this on a busy site, I recommend adding "-m 20" or so to your spamd command-line to throttle periods of intense mail delivery.

    You can also configure SpamAssassin to do lots of useful stuff just the way you like it. There's a FAQ on your site that will walk you through it, but after the first time spamd handles mail for you, it will create a ".spamassassin/user_prefs" file that has good comments in it that guide you through common configuration needs (like whitelisting users).

    1. Re:SA still works by stratjakt · · Score: 5, Funny
      If you want to try it out, you will (most likely) need your own machine handling mail (if you're a broadband or DSL user, this is easy enough, I'll assume you've made that step...)

      Now, make sure Perl is installed.

      Now, as root, type "perl -MCPAN -e shell" and follow the instructions to set up Perl's configuration system.

      In that shell, type "install Mail::SpamAssassin".

      Exit that shell and type "/etc/init.d/spamassassin start"

      You will want to do what your OS prefers for making sure this starts at boot time, under Red Hat Linux, that's "/sbin/chkconfig --levels 35 spamassassin on"

      Exit your root shell, and do the rest as your user account.

      Assuming you use sendmail with procmail (see the SpamAssassin site for other MTA configuration steps), put: :0fw
      | spamc -f
      into your .procmailrc.

      SpamAssassin is now doing its job. It just marks messages that it thinks are spam. See the example procmailrc [spamassassin.org] on spamassassin.org for more information on how you can move the mail to another folder, delete it, or even more complex things. Also, there's a procmail bug that the example config can help you work around.

      If you're doing this on a busy site, I recommend adding "-m 20" or so to your spamd command-line to throttle periods of intense mail delivery.

      You can also configure SpamAssassin to do lots of useful stuff just the way you like it. There's a FAQ on your site that will walk you through it, but after the first time spamd handles mail for you, it will create a ".spamassassin/user_prefs" file that has good comments in it that guide you through common configuration needs (like whitelisting users).


      Is that all!?

      I'll forward this to my grandma toute-suite.
      --
      I don't need no instructions to know how to rock!!!!
  37. Cringely has an interesting proposal by Norman+Lorrain · · Score: 2, Interesting
    in this week's pulpit.

    Basically, it's challenge/response, with the response being via telephone

    I replied to him with the following:

    I like your idea, I think it'll work. It's a variation of the challenge/response scheme, with the response being via a sender-paid phone call.

    Here's a story: 2 years ago, we moved, so I had to change ISPs. I took the opportunity to do an experiment - my new email address I only divulge to people I know; everything else I use a Hotmail account for. In 2 years I have NEVER received spam on my "private" account, and I don't even have a filter enabled. Hotmail, on the other hand, is a different story, but is handy for internet purchases and emailing pundits.

    Some points to ponder

    - Your forum is a good way to get the ball rolling. Once a reasonable scheme is agreed upon, you could post it (maybe as an RFC) and the practice could spread virus-like from there. Even post instructions for Outlook users (rules wizard). If this catches on, a setup.exe for this filter would be a hot download!

    - When subscribing to mailing lists, one might forget to add the address to your address book, thereby flooding the list with the "challenge" email. There should be a standard tag in the challenge that mailing list servers can filter on, and even automatically take you off the list.

    - Since an auto-reply confirms to the spammer the address, the filter should ALWAYS delete the email. Once this practice is known, this might even prompt spammers to take you *off* his list. Saving the message would lead some spammers to continue on the off chance you might look through your spam folder later on.

    - Using this scheme with bob@cringely.com obviously is not going to work (if you posted a controversial article, it would give new meaning to "slashdotting"). However few email users have a web site that invites comments. If a spammer loses a large percentage of his address list, he'll close up shop completely (here's a question: what is that percentage? How many email addresses make spamming a worthwhile income generator?)

    - Registering with sites like NYtimes.com should be done with a disposable address, because forgetting the password requires an email be sent from some unknowable sender (forgot@lga2.nytimes.com)

    So that's the new email reality. Get a private address equipped with the challenge/telephone response. Get a disposable address for shopping, or reading the news. And backup your address book.

    Sample template for the challenge message:

    I don't know who you are. If you want me to read your message, call me at xxx-xxx-xxxx and we can arrange to allow future messages to come straight through.

    The message you sent was automatically deleted. I did not see it. Sorry for the inconvenience.

    <SPAM CHALLENGE> this tag is for mail list managers </SPAM CHALLENGE>

    As some else pointed out, the filter should check addresses that have had messages sent to, to avoid challenge/response infinite loops.
  38. this service will give you MORE spam by bongoras · · Score: 2, Informative

    They reserve the right to release any and all infomation... from the TOS:
    "Mailblocks furnishes our members, and permits third parties to furnish our
    members, through the Services and otherwise, with information, promotional
    materials and solicitations, from time to time. You may not "opt out" of
    the receipt of such promotional materials from Mailblocks and/or its
    affiliates, advertisers or other business partners if you wish to use the
    Services. The receipt of such promotional materials is an inseparable part
    of the Services that Mailblocks provides. If you decide that you would like
    to discontinue receiving such promotional materials, you must stop your use
    of the Services and terminate your account with Mailblocks."

    "Mailblocks reserves the right to release any personally identifiable
    registration information regarding you to third parties who provide goods
    or services that we believe may be of interest to you. Some third parties
    furnishing you with promotional materials may permit you to "opt out" of
    receiving such communications from them. However, Mailblocks is not
    responsible for any such party's failure to comply with its own "opt out"
    policies."

    "Mailblocks uses individual data to "target" advertising - to decide which
    advertisements and sponsor messages to send to which members. As an
    example, if Sponsor Co. wishes to send their advertising only to Mailblocks
    members residing in California, Mailblocks uses member registration data to
    ensure that Sponsor Co.'s ads are sent only to members residing in California."

    "Mailblocks may use individual members' data to "pre-populate" forms which
    are displayed for the purpose of collecting individual data by Mailblocks
    and/or its sponsors. In no case does pre-populating a form automatically
    transfer any data to any advertiser or third party. Only if the member
    voluntarily requests that such data be transferred will any transfer take
    place - for example, if/when a member clicks a "submit form" button or
    other button."

  39. SpamGourmet by Penguinoflight · · Score: 4, Informative

    This is exactly what spamgourmet is useful for. Spamgourmet is free, and forwards messages to your "real" address, but only as many as are specified by the address. To use Spamgourmet, you first become a member with a single user address, however you can add "sub-addresses" in a similar way to subdomains, starting with just a lame label, then a number of MAX emails to be accepted at this alias, then the username.
    ,br> for example, if you wanted to get a confirmation from newegg.com, but didn't trust their mailing list... you could simple fill in newegg.3.joecool@spamgourmet.com. this would give them a max of 3 emails, 1 for billing, 1 for shipping, and 1 for whatever is bound to go wrong.

    Try it out today at spamourmet.com

    --
    "And we have seen and do testify that the Father sent the Son to be the Savior of the World"
    1 John 4:14
    1. Re:SpamGourmet by galaxy300 · · Score: 2, Interesting

      I got around the "bed of spam" problem with Hotmail by creating two accounts -- one to give out to everyone and one for only trusted people. Strangely enough (and knock on wood!) I get little to no spam on my "good" Hotmail account, after about two years of using both of them. Let's hope it stays that way!

  40. You don't understand by frovingslosh · · Score: 3, Informative
    I still do not understand why people with hotmail accounts dont just block anyone not in their address books. Think of it this way, with that feature you get to control who gets to talk to you. -bb

    Let me try to explain it to you. Sometimes you need or want to get an e-mail from someone who you haven't got an e-mail from before. You might need to get a tech support response. You might need to get an order confirmation for something you bought on-line. You might subscribe to a news letter or other information that you want but don't know the exact e-mail address it will be sent from (and that might even change some day). You might receive e-mail from an old friend or classmate who is trying to track you down, and perhaps they even got your address from a common friend. You might want to use your address publicly for a legitimate reason, like in a newsgroup to request information. You simply might think that you should have the right to make yourself findable for legitimate contact without opening yourself to hundreds of vulgar and dishonest spam messages every day.

    Or, you might really dislike spam, and not want to hand over your address book with your friend's valid e-mail addresses in it to a known spammer - Microsoft.

    --
    I'm an American. I love this country and the freedoms that we used to have.
  41. I have the solution to spam! by fredrikj · · Score: 4, Funny
    Add the following to your mail processing software:
    if (inmsg == spam)
    {
    delete(inmsg);
    }
    You may have to change the names of the variables/functions to suit those in your application's source code.

    I haven't tested it extensively, but the algorithm seems solid.
  42. Old news by friday2k · · Score: 2, Informative

    Hushmail has a challenge/response mechanism for quite a while now. And it works remarkably well ...

  43. This won't make much difference by WebMasterJoe · · Score: 4, Insightful
    'Hotmail subscribers are now limited to sending only 100 messages a day "in an effort to prevent spammers from using Hotmail to spread spam," said Lisa Gurry, MSN lead product manager.'
    This really isn't going to do anything worthwhile. Unless the spammers are actually logging into Hotmail, typing in the names, and pressing send, this sort of measure is pointless. It seems that the spammers are just throwing together random usernames + "@hotmail.com" and using their own smtp servers (or somebody else's, just not Hotmail's).

    If they want to do something to cut down on spam, why not just limit the number of messages that a server can send to hotmail addresses? Meaning, if I want to send out spam and my list includes 100,000 hotmail adresses, hotmail's servers will reject every message I send to a them after the 100th. That just wiped out 99.9% of spam that hotmail users would receive.

    Yes, it would take some work and the processing cost per message would be higher, but if it works, and cuts down on traffic by a higher percentage than the increased cost associated with the system, it would still be an amazing improvement.

    I've always wondered why MS couldn't look at all incoming messages and spot spam based on vast numbers of similar messages.
    --
    I really hate signatures, but go to my website.
  44. avoiding the loop by sacrilicious · · Score: 2, Interesting
    Challenge/response systems have the problem that if two parties both use a challenge/response system, they may not be able to communicate with each other at all. The challenge message may not get through. Worst case, they create a mail loop.

    The solution would be to adhere to the following protocol:

    • challenges always include the original message's subject line in the challenge email's subject line, and
    • non-challenge emails sent from a system result end up creating a temporary whitelist for emails returning from the destination server addressed to the original sender which include the subject line.
    --
    - First they ignore you, then they laugh at you, then ???, then profit.
    1. Re:avoiding the loop by TonyGreene · · Score: 2, Interesting
      A more standards-aware solution:
      • Challenges always include the Message-ID of the original message in the In-Reply-To header of the challenge.
      • Message-IDs of non-challenge email get added to a temporary whitelist to match against incoming In-Reply-To headers.
  45. Challenge-Respond infinite loop? by DuSTman31 · · Score: 2, Interesting

    I can see certain problems stemming from this whole challenge-response style address verification. For example, if someone writes a new message to a new person and forgets to add the address to his whitelist, then a situation may arise where the recipient sends a challenge to the sender, and then the sender running a similar scheme recieves the challenge message and decides to challenge its sender..

    Infinite loopsville...

  46. New tactics in the War on Spam by smack_attack · · Score: 2, Funny

    Spammers of the world,

    You have 48 hours to cease sending spam and give up. If you fail to stop sending spam after this timeframe, we will remove you from the Internet forcibly and swiftly. We will track you down and destroy your lists. Insecure servers will no longer be regarded as innocent relays, they will be dealt with swiftly and justly as well.

    You have 48 hours to comply with this ultimatum. Act responsibly with email and you will reap the benefits. Use spambot and harvesters and our forces will react with force.

    -Coalition of Canned Meat

  47. Sneakemail.com - Disposable addresses! by Jonah+Hex · · Score: 2, Interesting

    I've been using Sneakemail for awhile, it allows for totally disposable addresses with FULL accountability for each sender.

    For example, say a spammer grabs my address from here despite the /. filtering (which every site should have). Every email forwarded from sneakemail shows which specific one-time address it was sent to on the subject line. And since sneakemail allows you to filter each individual address seperately by every sender that's ever mailed that address if nessesary, I can easily turn off the spam while not having to truely discard an address. Plus it's great to know exactly where your address was harvested from, in fact one I've gotted alot of spam from was a one-time address I used for a techdirt.com spam article reply I made!

    Did I mention it's a quick bookmark popup thats easy to use and free (banner supported) or cheap premium (6 months $12US).

    This is of course only part of the solution, for the rest I use Mailwasher.

    Jonah Hex

  48. Mozilla 1.3 by dfj225 · · Score: 2, Informative

    I must say, I enjoy using Mozilla 1.3 for my email. It marks and moves most of the spam that I get to my "junk" folder. As time goes on, and I mark more and more messages as spam it will only become better. Of important note is that I have been training this program since the day it was released for beta testing.

    --
    SIGFAULT