Postfix bounces for nonexistent users

Message: 1
Date: Fri, 16 Dec 2005 09:37:13 -0800
From: Wil Cooley <wcooley@nakedape.cc>
Subject: Re: [PLUG] postfix question:  discarding mail to nonexistent
	users
To: plug@lists.pdxlinux.org
Message-ID: <1134754633.24128.13.camel@willow.odshp.com>
Content-Type: text/plain; charset="us-ascii"

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@nakedape.cc> Naked Ape Consulting, Ltd