[CentOS] sendmail not sending after reboot

Mon Jun 9 13:08:48 UTC 2008
Ray Leventhal <centos at swhi.net>

Ray Leventhal wrote:
> HI folks,
>
> I've an up-to-date CentOS 5.x box on a small intranet (<20 users).
>
> We did a reboot over the weekend and all appears well except that 
> clients on the LAN can no longer send email.  Just hangs/times out.  
> No clear identifiers in the /var/log/maillog or /var/log/messages.
>
> We're not setup for ESMTP as it's a closed network and I'm really 
> hoping for a kickstart as to where to look to get this going.
>
> In case it helps, my sendmail.cf file is below.
>
> Thanks in advance.
> -R
<snip>
I should add that sendmail is definitely running :).  I can telnet to 
the box on port 25 and get a reply, and  "service sendmail status" 
returns 'running' with at least one pid.