Hi Viktor: I configured that internally generated mail to be filtered through our DKIM milter. This was to allow deliveries of error messages from the server to my inbox. However, I see above how this is not ideal since that can just be delivered to the root user inbox. I have turned off that setting.
After making several tweaks from suggestions in this thread I saw much better performance last night. On Fri, Jan 19, 2018 at 2:25 PM, Viktor Dukhovni <postfix-us...@dukhovni.org > wrote: > 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. > -- This message may contain confidential information and is intended only for the individuals named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
