MailScanner blocking ClamAV emails

[Walt Thiessen]

I have MailScanner set to check all inbound and outbound email using ClamAV.

I have ClamAV set up to send me an email each day informing me of any 
possible infections.

For about a week or two now, this email has failed to arrive.

My admins found the problem. ClamAV is apparently blocking itself via 
MailScanner.

 From the maillog:

[root at server ~]# grep 1cqtVW-0002rF-UX /var/log/maillog
Mar 22 23:33:50 server MailScanner: Filename Checks: Allowing 
1cqtVW-0002rF-UX clamav-2017-03-22.log (no rule matched)
Mar 22 23:33:51 server MailScanner: Filetype Checks: Allowing 
1cqtVW-0002rF-UX clamav-2017-03-22.log
Mar 22 23:33:51 server MailScanner: Clamd::INFECTED:: 
YARA.r57shell_php_php.UNOFFICIAL :: ./1cqtVW-0002rF-UX/clamav-2017-03-22.log
Mar 22 23:33:51 server MailScanner: Infected message 1cqtVW-0002rF-UX 
came from 127.0.0.1
Mar 22 23:33:51 server MailScanner: 1cqtVW-0002rF-UX: Received for 
MailControl Database
Mar 22 23:33:51 server MailScanner: 1cqtVW-0002rF-UX: MailControl cannot 
insert row: %%C7RPN1O2FYP5LGSYVTBFOC2X10OGEDRXXIPRGRGJJJI5KDWFI8S

We tried whitelisting root at server or 127.0.0.1, but it didn't help.

Any ideas?

Walt