Outgoing Mail

Issues with outgoing mail were the result of an update to clamav, the anti-virus software we use, which replaced my existing configuration file with a new configuration file that was not functional in our environment.

It didn’t break things at the time of the update because it did not restart the milter (a mail filter) at the time of the update.  It restarted later to rotate logs and at that point it broke outgoing client mail.