Jochen,

> With Amavisd-new, Postfix and SpamAssassin on Debian, using a BEFORE-QUEUE
> setup (i.e. dual SMTPD) I would like to achieve the following:
>
> 1. If (spam score <= tag2_level)
>    Then Deliver mail to the 2nd SMTPD (localhost:10025) immediately
>
> 2. If (tag2_level <= spam score <= kill_level)
>    Then Deliver mail to another SMPTD (e.g. localhost:10026), this SMTPD
>            would use greylisting.
> Returning a 4xx (temp failure) on these mails for a while should filter
> out spam. Everything that is unlikely to be spam would have been delivered
> without any dealy via the non-greylisting SMTPD in 1.
>
> 3. Quarantine all mails above the kill level and send back a 5xx
> (permanent failure)
>
> I have 1 and 3 implemented and things work fine.
> Setting a SMPTD to use greylisting as a Postfix policy_server is no
> problem. But how do I get Amavis to send to this greylisting SMPTD, based
> on the spam score ?

Mail with scores between tag2 and kill level are delivered, and are subject
to tagging and appending address extensions. You can for example append 
'+spam' to each recipient address of passed mail in that range, then
configure Postfix virtual map to rewrite /[EMAIL PROTECTED]/ to your other MTA,
as in the example :
  /^(.*)\+spam@([EMAIL PROTECTED])\.example\.com$/   [EMAIL PROTECTED]
at:
  http://www.ijs.si/software/amavisd/amavisd-new-docs.html#addrext

(I'm just answering your immediate question, not saying that what you
are doing is the good or bad).

  Mark


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