Roberto,
> Hi, is possible to skip the antivirus scanning for big attach?
No, it would make it too easy to bypass virus scanning.
There are a couple limits available to protect virus scanners:
$MAXLEVELS
$MAXFILES
$MIN_EXPANSION_QUOTA
$MIN_EXPANSION_FACTOR
$MAX_EXPANSION_QUOTA
$MAX_EXPANSION_FACTOR
(more info on these in amavisd.conf-sample)
When such limit is exceeded during mail decoding, virus scanners are
NOT called, and message is tagged with CC_UNCHECKED content category.
What happens next depends on your settings:
$defang_undecipherable
$undecipherable_subject_tag (defaults to '***UNCHECKED*** ')
$final_destiny_by_ccat{+CC_UNCHECKED} (defaults to D_PASS)
An 'X-Amavis-Hold' header field is inserted into passed mail,
so MTA can be configured to treat such mail specially, like
puting it on hold or discarding or rerouting.
It is useful to set:
$defang_undecipherable = 1;
which will push a body of such mail into an attachment
and prepend a short warning text.
Mark
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