On Fri, Jan 19, 2018 at 02:04:05PM -0500, Zach Sheppard wrote:
> I have not made any changes to rsyslog.conf. All it does it redirect all
> mail log messages to one log in /var/log/mail which I rotate with a cron
> script nightly. However, I do agree that it really could be the only other
> process that could be hanging the server.
Your milter could be another culprit, and you've unwisely configured
filtering of internally generated mail, including notices about
problems. So the first thing is to undo the filtering of internally
generated mail. See also my other comments about your config.
As for syslog, for MTAs I prefer syslog-ng, to rsyslog, and make
sure that /dev/log is configured as a "dgram" not "stream" socket.
Also make sure that log writes are not synchronous.
--
Viktor.
