Re: reject non-existent sender addresses in snapshot

On Tue, 27 Jan 2004, Paul Hutchings wrote:
> ---
> The SMTP server now rejects non-existent sender addresses in a
> local, virtual or relay domain; that is, a sender address must
> pass the same "user unknown" test as a recipient would have to
> pass. This is not configurable.
> --
>
> Any plans to make it configurable?

Of course, and it already is. The code hasn't been released yet because
I am cleaning up the documentation.

> We have some internal applications that generate mail deliberately set to
> have a from address of donotreply@ourdomain.com because we don't want people
> to reply (telling them doesn't work, a bounce does).

Using an invalid sender address is a bad idea.

Wietse

> Usually these get bounced internally by our exchange server, _however_ some
> users have mail redirected to third party addresses and our postfix relay is
> refusing to accept the message because it's not in its relay_recipient table
> - hope that makes sense!