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Old 15th April 2013, 13:16
till till is offline
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The log does not contain any connections from a external mailserver, so the problem can be:

1) The dns record is not corrcet.
2) Port 25 is not forwarded from router to the server IP if your server is installed in a local network.
3) Port 25 is blocked by a firewall on the server, a router or by your ISP.
4) Postfix is not listening on the external network interface.

Please post the output of:

netstat -tap


iptables -L
Till Brehm
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