How do you modify (replace) the MTA SMTP port?
We're trying to get zimbra working side-by-side with another mail system (so that we can migrate to zimbra slowly). We need to get zimbra to not use port 25, but for some reason we can't quite get it to work.
This is the relevant entry from our /opt/zimbra/postfix/conf/master.cf file
(smtp2 should be set for port 26)
smtp2 inet n - n - - smtpd