A Forum reader recently asked:
“I have just installed GroupWise on OES, and I am having serious issue. I am even confused as to what the problem is. I can send mail out the Internet, but cannot receive. I cannot telnet to port 25 either, which I believe is a major issue. First I thought the problem was the MX record,
but it’s being confirmed as fine.”
And here’s the response from Morris Blackham …
Postfix is probably tying up port 25. Here are two options, with the first being my recommended method:
1. Set GWIA to “bind exclusive to TCP/IP” address, then restart GWIA. The Postfix default configuration is to only listen on the loopback address, so setting GWIA to bind to the public address will allow co-existence.
2. Shut down and disable Postfix (“/etc/init.d/postfix stop”, then “chkconfig postfix off”). The disadvantage here is that system messages and logs will not ever get e-mail to the root user.