Marc G. Fournier scrappy at
Fri May 6 21:59:34 EDT 2005

On Fri, 6 May 2005, Jim Levie wrote:

> On Thu, 2005-05-05 at 16:35, Marc G. Fournier wrote:
>> On Fri, 6 May 2005, Sergey wrote:
>>> On Tuesday 03 May 2005 01:21, Amos wrote:
>>>> Hmmm... what's this about ClamAV? Integrated virus scanning? Maybe
>>>> for the Sieve virus check test?
>>> It is very bad idea. Anti-virus check should be made at a stage of
>>> smtp-session. The sender should receive reject <virus name> after data.
>>> It is not a problem of cyrus-imap. It is a task of MTA.
>> 'k, I use postfix right now, and amavisd for the virus scanning ... as far
>> as I know, the sender doesn't receive a 'reject <virus name>' that way
>> either ... or is there something that I need to setup for this to happen?
> I use MailScanner to to A/V scanning and spam control and it can be
> configured to send a reject back to the sender of a virus infected
> message. But in the general case it is a bad idea since most of what
> you'll see will have a forged envelope sender. So any notice you send
> back is unlikely to reach the real sender and winds up just being an
> annoyance to some innocent party. During the recent Sober outbreak I was
> getting about 30 reject warnings an hour from all over the place. Given
> that I don't have any windows boxes and thus could never have been the
> source of a Sober infected email it was just a major annoyance.

'k, I thought maybe he was suggesting some way of doing it at the SMTP 
'handshake' level, so that it was rejected before even hitting the queue 

Marc G. Fournier           Hub.Org Networking Services (
Email: scrappy at           Yahoo!: yscrappy              ICQ: 7615664
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