My security group has the following:
>22 (SSH) 0.0.0.0/0
>80 (HTTP) 0.0.0.0/0
>143 (IMAP) 0.0.0.0/0
>443 (HTTPS) 0.0.0.0/0
>995 (POP3S) 0.0.0.0/0
>465 (SMTPS) 0.0.0.0/0
>25 (SMTP) 0.0.0.0/0
Running netstat on the server shows the following:
>Active Internet connections (servers and established)
>Proto Recv-Q Send-Q Local Address Foreign Address State
>tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN
>tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
>tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
>tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
>tcp 0 0 10.211.30.202:44025 194.14.0.125:6667 ESTABLISHED
>tcp6 0 0 :::995 :::* LISTEN
>tcp6 0 0 :::110 :::* LISTEN
>tcp6 0 0 :::143 :::* LISTEN
>tcp6 0 0 :::22 :::* LISTEN
>tcp6 0 0 :::25 :::* LISTEN
>tcp6 0 0 :::993 :::* LISTEN
And when I try to access the box from the outside world, I get nothing.
>thedude:~ root$ telnet mail.sd0a.com 25<br />
>Trying 107.20.235.215...<br />
>telnet: connect to address 107.20.235.215: Operation timed out<br />
>telnet: Unable to connect to remote host<br />
Does anyone have any positive experiences with Amazon EC2 instances and receiving mail in a state in which it will work? It is worth noting that mail seems to go through the command line. The system is Ubuntu 12.04.1 LTS, if that matters.
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