Question : Fedora Core and Sendmail Config

I have sendmail and dovecot running I got to the point that it all works fine on our internal network send receive etc.

But I can not telnet to the server on port 25 or 143 from an outside server. Thought it may be a firelwall conflict so took the firewall down all together but still does not work

Any ideas???

Answer : Fedora Core and Sendmail Config

Well, that's certainly correct.

Sendmail only binds to IP's if they configured when Sendmail starts. If you bring up an IP in rc.local that will happen well after Sendmail started and could be a cause. The fix would be to move the interface config to /etc/sysconfig/network-scripts/ifcfg-eth0:1 since the boot process will then have the interface configured before Sendmail starts. If that wasn't the case you can restart sendmail (/sbin/service sendmail restart) to have it scan the interfaces.