[clamav-users] Clamav-milter finds postive, goes to hold queue

Grant Taylor gtaylor at tnetconsulting.net
Wed Feb 24 17:12:35 UTC 2021


On 2/24/21 9:47 AM, Joe Acquisto-j4 wrote:
> Back OT, my post was about dealing with items that have already 
> been processed and are in the posfix HOLD queue, per the action of 
> clamav-milter, waiting for disposition in some way.

Hypothetically, a milter, such as clamav-milter, could say:

```
This file looks suspicious, but none of my virus definition lists 
confirm it.  Hold on to this message for a while.  Hopefully if it is a 
bad message / file it's only a matter of time before the virus 
definition lists are updated with the new signature.
```

Thus when someone / something processes the held / quarantined messages, 
they will find this virus with the updated definition lists and be glad 
that it was not sent on wards and delivered to an end user.

Aside:  I use Sendmail's quarantine capability for messages to / from 
specific domains.  Currently lab domains and two customer domains that 
forward which were receiving a spate of spam that made it through my 
filters.  So I manually review things to / from the lab or to the 
customer and release clean messages.

With Sendmail, I unquarantine a message and it simply puts it back in 
the mail queue for regular processing.  Thus messages just spent longer 
than normal on my mail server.  --  I don't know how Postfix does 
things, but I assume it's conceptually similar.



-- 
Grant. . . .
unix || die

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