Difference between revisions of "Postfix bounces for nonexistent users"
From Finninday
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[[Category:Computers]] | [[Category:Computers]] | ||
[[Category:Postfix]] | [[Category:Postfix]] | ||
| − | + | <pre> | |
Message: 1 | Message: 1 | ||
Date: Fri, 16 Dec 2005 09:37:13 -0800 | Date: Fri, 16 Dec 2005 09:37:13 -0800 | ||
| − | From: Wil Cooley | + | From: Wil Cooley <wcooley@nakedape.cc> |
Subject: Re: [PLUG] postfix question: discarding mail to nonexistent | Subject: Re: [PLUG] postfix question: discarding mail to nonexistent | ||
users | users | ||
To: plug@lists.pdxlinux.org | To: plug@lists.pdxlinux.org | ||
| − | Message-ID: | + | Message-ID: <1134754633.24128.13.camel@willow.odshp.com> |
| − | Content-Type: text/plain; charset= | + | Content-Type: text/plain; charset="us-ascii" |
On Thu, 2005-12-15 at 09:27 -0800, Keith Lofstrom wrote: | 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. | |
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Wil | Wil | ||
| − | -- Wil Cooley | + | -- Wil Cooley <wcooley@nakedape.cc> Naked Ape Consulting, Ltd |
| − | + | </pre> | |
Latest revision as of 05:09, 24 November 2010
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
