postfix per sender relay bounces
Hi, I noticed an odd problem on my fresh local postfix setup (which was done after Pauls howto http://marilyn.frields.org:8080/~paul/wordpress/?p=2616 ) The Problem is: when my paranoid university mail server denied relay because of the wrong helo (even though I authenticate via a TLS secured connection), postfix happily wanted to send a bounce report. To the adress of the "faked" sender. So it tried to relay that bounce report to the university server again and -of course- failed. Is there a way to configure postfix to send bounces for specific senders back to a local queue? regards christoph signature.asc Description: Dies ist ein digital signierter Nachrichtenteil -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: postfix per sender relay bounces
On Thu, 2009-07-23 at 14:36 +0200, Christoph Höger wrote: > Hi, > > I noticed an odd problem on my fresh local postfix setup (which was done > after Pauls howto > > http://marilyn.frields.org:8080/~paul/wordpress/?p=2616 > ) The Problem is: when my paranoid university mail server denied relay > because of the wrong helo (even though I authenticate via a TLS secured > connection), postfix happily wanted to send a bounce report. To the > adress of the "faked" sender. So it tried to relay that bounce report to > the university server again and -of course- failed. > > Is there a way to configure postfix to send bounces for specific senders > back to a local queue? I'm not entirely sure what the local queue will do but you can implement sender checks... # cat /etc/postfix/sender_checks # This file must be "compiled" with "postmap" # We get lots of spam from example3.tld, but we have somebody # there from which we do want to hear #someu...@example3.tld OK #example3.tld REJECT and add to smtpd_restrictions... check_sender_access hash:/etc/postfix/sender_checks, Craig -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: postfix per sender relay bounces
Christoph Höger wrote: > Hi, > > I noticed an odd problem on my fresh local postfix setup (which was done > after Pauls howto > > http://marilyn.frields.org:8080/~paul/wordpress/?p=2616 > ) The Problem is: when my paranoid university mail server denied relay > because of the wrong helo (even though I authenticate via a TLS secured > connection), postfix happily wanted to send a bounce report. To the > adress of the "faked" sender. So it tried to relay that bounce report to > the university server again and -of course- failed. > > Is there a way to configure postfix to send bounces for specific senders > back to a local queue? > > regards > > christoph > You man want to look into header_checks (man header_checks) to redirect the bounce messages to a local mailbox. Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup! signature.asc Description: OpenPGP digital signature -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
