From: Wietse Venema (wietseporcupine.org)
Date: Wed Aug 10 2005 - 19:51:05 CDT

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Victor Duchovni:
> On Wed, Aug 10, 2005 at 07:50:32PM -0400, Wietse Venema wrote:
>
> > Joel Nimety:
> > > I'm using *_bcc_maps to archive mail to separate mailboxes bassed on
> > > sender and recipient domain. The postfix documentation states that "if
> > > mail to the BCC address bounces it will be returned to the sender". If
> > > possible I would like to not an NDN if the BCC address cannot be
> > > delivered. Is this possible?
> >
> > What was not clear about the documentation?
> >
> > > Is their some workaround I can use to
> > > block/not send NDN's for specific recipient addresses (in this case my
> > > bbc_maps addresses)?
> >
> > This is a fundamental limitation of adding BCC recipients to
> > the SAME queue file.
> >
>
> This said, it is possible to make such bounces improbable, by handing the
> bcc mail to a pipe(8) based locally implemented transport that is written
> to be robust and never return fatal errors, and that forwards the bcc'd
> message to the archive system after changing the envelope sender address.

If the auto BCC recipient is not forwarded to a different MTA,
then Postfix 2.3 will suppress auto BCC bounces; it pretends that
the recipient has a DSN notification option of "NEVER".

However, this guarantee does not exist when mail is forwarded to
a different MTA.

        Wietse

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