[CentOS] clamd / amavisd missing socket

I think something along these lines appeared before but I was unable to find them.

I'm on a 7.6 system, been running clamav and amavisd-new since 6 days with little problem. On a recent reboot, clamd@amavisd does not start up and fails manual start.

The problem seems to be the missing socket that connects the pair, "/var/run/clamd.amavisd/clamd.socket".

I believe this should be created by systemd files but I see no indication of them on my system.

Anyone know which files might be missing and where to get copies? Or a work around to run clamd@amavisd and get rid of the "*** UNCHECKED ***' additions to my my Subject lines?

BTW manual creation of the socket with netcat had no effect on the startup.

Jon