Spamassassin RBL's

[Olivier Nicole]

> 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