Re: [AMaViS-user] Too big a message times out, multiplies on disk

You need to adjust your timeouts so that your clamav timeout is
sooner than the amavis timeout, etc.

I believe there is also a max-file-size option in clamav which would
help you.

On Apr 2, 2008, at 4:33 AM, Hanne Moa wrote:
> We've been plagued by a very large (1.7 GB) bounce lately and wondered
> if newer amavisd-news are smarter about this:
>
> Basically what happens is: postfix hands mail over to amavis who hands
> it over to clamav. Clamav spends so much time attempting to scan the
> file that postfix times out, gives up and puts the offending mail in
> deferred. The copy of the mail hangs around in various tmp-directories
> instead of being deleted. Then postfix tries again. Clamav takes too
> much time, postfix times out, gives up, and now there are *two* copies
> of the mail in various tmp-directories. Repeat until disk full. Then
> the flow of mail stops and the flow of phonecalls begin.
>
> The workaround is to shut down amavis, clamav, postfix, delete
> (postsuper -d) the offending mail, hunt down and delete the copies in
> the various tmp-directories, turning everything back on and cross
> fingers. An elegant fix would be for postfix to say "no way will I be
> able to deliver this" and shunt it into the hold-queue for the
> postmaster to deal with. What amavis and friends need to do is
> discover somehow when this happens, and break the loop (and clean up
> the messages that postfix gives up on).
>
> I'll eventually be upgrading anyway but a solution for the above
> problem might speed up things.
>
>
> HM
>
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--
Jo Rhett
Net Consonance : consonant endings by net philanthropy, open source
and other randomness



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