On Mon, Aug 30, Wietse Venema wrote:
> Nick Simicich:
> > Problem: Postfix, by default, uses a special mechanism to quickly catch
> > and thwart mail loops. It places a "delivered-to" header into the mail
> > when it delivers it. If mail is pushed back into postfix, and it is about
> > to deliver it to a place it has already delivered it to, it bounces it
> > instead. This is very effective. It is so effective that it catches even
> > mail loops where the Received lines are stripped. It also catches
> > attempts to approve messages, because the mail will be inserted into the
> > mail queue with a target destination that is already named in a
> > Delivered-To:. This is the problem.
>
> Yes, delivered-to is ugly.
>
> Thanks for the resend patch. This is better than forcing moderators
> everywhere to patch their mailing list approval scripts.
>
> Would it help if the patch was more specific so that it only drops
> /^Delivered-To: .*majordomo@/ and leaves other headers intact?
>
> There's one other solution, suggested long ago on this list, and
> that is to count Delivered-To: headers and to allow mail to loop
> exactly once. However, that would affect all mail, and not just
> mail that being approved.
IMHO, the Delivered-To: mechanism has to be deactivateable.
I removed those lines from source, because we are not able
to use postfix anymore if not.
We are using very complex procmail-filters for our support
and other nonsingle-user accounts.
E.g. mail reaches support, it'll be bounced to some user
and if this user is on vacation, it'll be bounced back and postfix
does not like this... :-(
--
mit freundlichen Gruessen,
Carsten Hoeger - SuSE Professional Services -
SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg, Germany
Tel: +49-911-7405356 Mo-Fr 09-17.00, Fax: +49-911-3206727
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