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Date: Tue, 12 Jun 2007 16:29:18 +0700 (ICT)
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From: Olivier Nicole <on@cs.ait.ac.th>
To: reko.turja@liukuma.net
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X-Virus-Scanned: on CSIM by amavisd-milter (http://www.amavis.org/)
Cc: peter@placidpublishing.net, freebsd-questions@freebsd.org
Subject: Re: Spamassassin RBL's
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> The directive above tells  postfix to add information into 
> headers that tell Amavis the mail was sent by someone who was 
> authenticated by the system and thus trusted.

I expect that the above mentionned headers cannot be forged. Else that
would be a nice way for spam to avoid filtering.

Beside, I am not sure it is a good measure to disable Amavis for any
email. First goal of amavis is virus scanning, even a
trusted/authenticated sender could have his machine infected and could
be spreading viruses.

My 2 cents.

Olivier