SuSE 9.2 Pro: can read but not send email
The system described in a previous message is able to read email (with both Thunderbird and Evolution) but can't send it. WHen I try, it simply puts up the "sending" box - I think it says it's contacting the host - and after a few minutes, announces that it timed out waiting for a reply. This is true of two different providers' hosts. The host names are correct and both pointed at port 25. I'm not seeing anything in logs, but I could be looking in the wrong place.
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This would be normal behavior if you were on a LAN at work.
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Sounds like either your ISP or work LAN has port 25 blocked. One way to test this is to telnet net the mail server:
"telnet <server> 25" This will help you to determine if you can reach the mail server. |
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I'm thinking it's probably the router at home not letting traffic out on 25... but I know it lets traffic out on 22, because I ssh from home quite a bit. The more I think about it, the more I think it must be the router - this computer's been at home most of the time, and when I'm at the office I use other computers for email, and haven't tried it there... be easy to check, anyway... Thanks! |
Mail receival happens on port tcp/110. SSH on 22, telnet on 23, and smtp (how you send email) on 25. The command
"telnet <server> 25" Attempts to connect to your mail server on port 25, not the usual telnet port (23). If port 25 isn't blocked, you will get connected. If 25 is blocked it will eventually timeout. Most ISP's these days block port 25. This stops spammers from setting up their own mailserver to send out spam on their networks. |
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You live, and you learn... well, okay, you live... |
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Thanks for the pointer! |
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