Mail Fail to deliver after ClamAV definition Update today

Terence Chan at
Mon Nov 15 12:02:30 GMT 2010

Hi After an update of the definition on ClamAV 2AM GMT, all email on my mail
server failed to deliver.

An error message shows up like this.

Nov 15 01:20:06 mail01a MailScanner[14801]: None of the files matched by the
"Monitors For ClamAV Updates" patterns exist!

When I restart MailScanner - the MailScanner process die repeatedly. (See
the defunct MailScanner)

30589 ?        Ss     0:00 MailScanner: starting child
30594 ?        S      0:00 MailWatch SQL
30610 pts/1    S+     0:00 grep MailScanner
30623 ?        Z      0:04 [MailScanner] <defunct>
30629 ?        Z      0:04 [MailScanner] <defunct>
30642 ?        Z      0:04 [MailScanner] <defunct>
30656 ?        R      0:04 MailScanner: starting child
30670 ?        S      0:00 MailScanner: starting child

I have to disable virus scanning before I can restart MaiLScanner and email
starts to deliver again.

I am running ClamAV 0.96 and using the clamavmodule to activate the ClamAV.
This setup has been running for over a year and not giving us any problem.

Please advise how we can check what goes wrong.

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