Hi list!

We have a very strange problem on a mailserver by us...

Sometime, very random, Exim reports:

2021-07-08 14:08:32 1m1Ske-000Gkt-3E malware acl condition: clamd /var/run/clamav/clamd.ctl : unable to read from socket (Connection timed out)

In this moment there are _NO_ log entry in ClamAV-Log or Syslog, so I can't understand why sometimes Exim cannot speak with ClamAV...

In the Exim-configuration we have:

  deny   condition       = ${if eq {$acl_m_ciphermail}{true}{no}{yes}}
          condition      = ${if eq {$acl_m_dontAVscan}{} {yes}{no}}
message = 552 PVC06 - This message contains a virus ($malware_name) - Scanned by ClamAV log_message = 552 PVC06 - E-Mail contains Virus. ASSISTENCE_MESSAGE (PVC06)
          set acl_m0     = clamd:/var/run/clamav/clamd.ctl
          malware        = * / tmo=5m

As you see, I already tried to give a huge timeout in the communication between Exim and ClamAV, but it does not solve the problem...

Do someone have an idea?

Thanks a lot
Luca Bertoncello
(lucab...@lucabert.de)

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