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Old 27th January 2010, 01:48 AM
yungblood Offline
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Join Date: May 2007
Posts: 8
windows_xp_2003firefox
Smtp no longer accepting remote connections.

I ran into an unusual problem. I had to change all the IP's at work when I installed openvpn-as so that the IP's wouldn't conflict with home users. After the server rebooted, it no longer accepted smtp connections from outside itself.

Here's some of the checking I've done:
netstat -nl | grep 25
Code:
tcp        0      0 0.0.0.0:25                  0.0.0.0:*                   LISTEN
iptables -L | grep smtp
Code:
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:smtp
The server is on a private IP with the router forwarding all traffic from one of our public IP's to the private IP.

I can telnet into port 25 using the public IP from the server, and I get:
Code:
220 mydomain.com ESMTP Sendmail 8.14.3/8.13.8; Tue, 26 Jan 2010 16:07:20 -0800
*** Domain name changed to protect the innocent...
Yet if I try to do the same from outside, I can't connect. I am still receiving e-mail. But I can't send mail from any computer except the server. I used to be able to send mail from anywhere.

Ideas?

-Yungblood
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