Postfix bounces for nonexistent users
<pre> 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 </pre>
