poll: filter message when ClamAV is down

[Joe Savelberg <joe@xxxxxxxxxxx>]

Hi all,

This is a quick poll about what the ClamAV module should do when the 
ClamAV scanner is not accessible.

Currently, when the ClamAV scanner is not available for any reason 
(because it crashed, too many simultaneous messages etc.) all 
messages are being flagged as containing a virus. If you haven't set 
up your ClamAV filter to copy messages to a filtered mailbox, then 
all messages will be lost. The default Post.Office setup for the 
ClamAV filter is to discard all trapped messages.

In my opinion it would be better to let messages get passed the 
ClamAV module without filtering when the ClamAV scanner is not 
available and let other filters (such as SpamAssassin) do their job. 
E.g. the clamav scanner is not available and messages will get passed 
on to SpamAssassin or other Header/Body filters which can serve as a 
backup for virus filtering. That way, normal mail can still get 
through.

So the question is: Should the ClamAV module flag all messages as 
viruses when the clamav scanner cannot scan the message like it's now?

1) Yes, all messages should be flagged as viruses when the scanner is 
not available.

2) No, messages should NOT be flagged as viruses when the scanner is 
not available and instead the messages can get scanned by additional 
SMTP filters.


I find this a very important issue because if your clamav scanner 
goes down and the module can't connect to it, no messages will be 
delivered to the final destination which could provide a lot of 
problems when you can't check the filtered virus mailbox every day.

Please cast your vote.

Thanks,

Joe.

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