At Sun, 17 Oct 2010 23:29:18 +0200 CentOS mailing list centos@centos.org wrote:
On Sun, Oct 17, 2010 at 23:17, Eero Volotinen eero.volotinen@iki.fi wrote:
check out logs..
Thanks, Eero, I know that should be the first step always! It turns out that: Oct 17 23:12:47 mercury postfix/postfix-script: starting the Postfix mail system Oct 17 23:12:47 mercury postfix/master[30770]: fatal: bind 127.0.0.1 port 25: Address already in use
Which led me to: [root@mercury log]# netstat -anp --tcp --udp | grep LISTEN | grep 25 tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2870/exim
Stopping exim let me start postfix. Thanks!
Quoting from "Highlander": "There can be only one." For any given service (SMTP in this case), there can be only one listener. One cannot run two MTAs at the same time (unless one is using a non-standard port for one).