Oddly: The Airport is not part of the test-area; at least not the terminal area proper.
Richmond is 170,000 souls, relatively weathly, geek and gadget oriented and probably the highest cell-phone penetration of any city in North America.
It's also flat as a pancake. Maybe if you wanted to test the service over a large population, but only wanted to put up about one or two towers, it'd make sense.
The further skinny is that I relay email only to my ISP's SMTP server, therefore it always goes through.
Me-(wherever I am) -> My private server at end of cable modem -> Cable provider's SMTP server
I also have my SMTP server configured to accept mail on a port other than '25' (like 8225), which permits me to use up dial-up providers such as Earthlink which block port 25 traffic from leaving their net.
I've set up a private SMTP server that's attached to a cable-modem and it works flawlessy, yet my Internet IP address is dynamically assigned through DHCP.
For the major dial-up networks, JoiNet/UUNET/NetZero/EarthLink and so on, they probably assign an advertised (and therefore known) block of IP addresses to dial-up connections.
There are numerous settings in postmail/sendmail/qmail etc that control who can send mail through SMTP servers. From experience, many of these are enabled to prevent 'random' SMTP servers from relaying mail through them.
That's why I feel the Sendmail Enabler for Mac OS X could not be the magic elixir that it is tempting to make out of it.
Turning your own computer into a sendmail server only works if the recipient server trusts you and your machine.
A machine attached to a dial-up Earthlink account that is trying to sendmail through to an AOL email account looks a lot like a setup for spam.
As a result, many SMTP servers won't accept SMTP connections from unknown SMTP servers attached to unknown networks.
(I used to have a similar setup on my PB and used a variety of dial-up/wi-fi internet access and it rarely worked. I setup a private secure SMTP server for me and my friends and it works great.)
Slashdot Mirror
Nope. Likely a long lost relative. Say hi when you run into him.
Oddly: The Airport is not part of the test-area; at least not the terminal area proper.
Richmond is 170,000 souls, relatively weathly, geek and gadget oriented and probably the highest cell-phone penetration of any city in North America.
It's also flat as a pancake. Maybe if you wanted to test the service over a large population, but only wanted to put up about one or two towers, it'd make sense.
Matthew
Me-(wherever I am) -> My private server at end of cable modem -> Cable provider's SMTP server
I also have my SMTP server configured to accept mail on a port other than '25' (like 8225), which permits me to use up dial-up providers such as Earthlink which block port 25 traffic from leaving their net.
For the major dial-up networks, JoiNet/UUNET/NetZero/EarthLink and so on, they probably assign an advertised (and therefore known) block of IP addresses to dial-up connections.
There are numerous settings in postmail/sendmail/qmail etc that control who can send mail through SMTP servers. From experience, many of these are enabled to prevent 'random' SMTP servers from relaying mail through them.
That's why I feel the Sendmail Enabler for Mac OS X could not be the magic elixir that it is tempting to make out of it.
A machine attached to a dial-up Earthlink account that is trying to sendmail through to an AOL email account looks a lot like a setup for spam.
As a result, many SMTP servers won't accept SMTP connections from unknown SMTP servers attached to unknown networks.
(I used to have a similar setup on my PB and used a variety of dial-up/wi-fi internet access and it rarely worked. I setup a private secure SMTP server for me and my friends and it works great.)