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-   -   Postfix/Courier mail server Error Connecting (http://www.howtoforge.com/forums/showthread.php?t=60316)

tempomental 24th January 2013 01:05

Postfix/Courier mail server Error Connecting
 
I've got some small domain names that I host on my home server and would like to get some basic email addresses for those domains. I set up an Ubuntu 12.04 server and followed the instructions here for setting up a mail server with Postfix and Courier:

http://askubuntu.com/questions/54960...n-email-server (top rated answer)

After doing all that, I attempted to set up my info@example.com email address in Thunderbird, but it can't find the server.

I'm able to telnet into port 25 locally (i.e. telnet 127.0.0.1 25) and send myself a test message manually, but I can't telnet into port 25 from another computer. My ISP has informed me that they do not block any ports.

Pingability.com returns the following information about my mail server: There was a problem while talking with the mail server. Got 'ConnectException: Connection refused'

nmap -p 25 example.com yields the following:
PORT STATE SERVICE 25/tcp filtered smtp

What are my next steps to troubleshoot/resolve this? I'm at a dead end.

TIA

falko 25th January 2013 15:40

What are the outputs of
Code:

netstat -tap
and
Code:

iptables -L
?


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