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Old 07-30-2004
Olivier
 
Posts: n/a
Default Re: Virus Scanning, SMTP



Michael wrote:
> Is there a de facto standard for email virus scanning with Linux? It
> doesn't matter if it's a free solution or not (free is better of course!),
> but I was wondering what other system administrators actually use out there
> for filtering viruses from their corporate email.
>
>
> Michael
>


I am a qmail fan.
At first I use rbls to block all known-exploited(able) ipaddress
Then thanks to qmail-qfilter I block all executable attachement.
I also block a *lot* of spam from antivirus vendors claiming "your
computer sent a virus" etc ( actually these emails are nastier than virii )
Then I use clamav ( I run clamd under supervise and wrote a small script
to run clamdscan under qmail-qfilter )
At last I run spamc ( from spamassassin ) from qmail-qfilter

Note than thanks to the qmail-qfilter mechanism there is _ no bounce
email _ generated by my server. Only a 553 or 554 smtp response sent to
the spammer / virus robot..

Be very careful to not setup a solution which will spam the internet
with non-sense email ( "the email you sent to xxxx contained the Netsky
virus.. " )!!

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