David Somers wrote:
> On Wednesday 18 January 2006 09:19, Grzegorz Janoszka wrote:
> > Wouldn't it be better for you to use spamassassin not directly but
> > through amavisd? I have courier with amavis which filters mail with
> > clamav and spamassassin and it runs fine.
>
> As the saying goes TMTOOTDI :-) (Which is both a blessing and a
> curse!)
>
> Potentially stupid question: Is there any advantge in putting mail
> through amavid (which then puts it through clamav and spamassassing)
> than that just invoking both directly from maildroprc?
Advantages:
Amavis can reject messages during the SMTP session for virus or spam
content.
Disadvantages:
Courier filters cannot modify the message, so you can not add spam
headers to the message.
Amavis cannot do per-user Bayes, AWL, etc. Everything is site-wide.
What I do is use Amavis to call ClamAV so I can reject viruses at the
front door. Then I call spamc from maildrop to add spam headers to the
messages. Another approach is to let amavis do spam scanning as well.
This way you can reject high-scoring spam on the first pass (via amavis)
and then add markup to the rest on the second SA pass (via
maildrop/spamc). Of course, this takes more CPU and RAM as each message
passes through SA twice.
--
Bowie
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