[PLUG] postfix question: discarding mail to nonexistent users

[Wil Cooley]

On Thu, 2005-12-15 at 09:27 -0800, Keith Lofstrom wrote:
> I cannot find a parameter in postfix for turning off bounces for
> non-existent users.  If a spammer sends my server a mail to a
> non-existent user, with a fraudulent return address, postfix 
> sends a "no such user" message to the return address.  While this
> is probably called for by RFCs, it is not productive behavior 
> these days.  Just the mail logs are noting this is occuring are
> getting up to 100MB a week. 

Try 'local_recipient_maps'; this will reject messages for unknown local
recipients during the SMTP session, which is even less overhead than
accepting-and-not-bouncing and without the side-effect of violating
RFCs.

Wil
-- 
Wil Cooley <wcooley at nakedape.cc>
Naked Ape Consulting, Ltd
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