Jakob,

> Isn't there a way to "remember" the fact that a mail was submitted by an
> authneticated user? That would make many things easier.

> ... or submits the mails coming from authenticated users in a special way
> to amavis ?

You could play with policy banks and let Postfix send authenticated
mail for content filtering to amavisd on a separate port.
See http://www.ijs.si/software/amavisd/amavisd-new-docs.html#pbanks-ex

It is cleaner and easier to have a dedicated mailer for mail submissions,
XFORWARD to amavisd would in this case indicate that mail is coming
from our own MSA.

> Could e.g. postfix be configured in a way that it adds a special header

No, as far as I can tell (although SA folks would like to have it).

I believe the official policy is that it's nobody's business to know
whether mail submitter authenticated with SASL or used some other
mechanism (mynetworks, pop-before-smtp, ...). The MSA takes responsibility
that it will not be an open relay, and should be trusted to do its job.

Even if MTA would add this information to header (which could be used
by SA), it would not be used by amavisd, which ignores mail header
and only cares for information passed to it through SMTP.

  Mark

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