On 13/01/2009, at 10:13, wie...@porcupine.org (Wietse Venema) wrote:
David Cottle:
Content-Description: Undelivered Message
Content-Type: message/rfc822
Content-Transfer-Encoding: 8bit
Received: from server.engineering.idb (unknown [127.0.0.1])
by server.engineering.idb (Postfix) with ESMTP id C3F5B13C002D
for <webmas...@aus-city.com>; Sun, 11 Jan 2009 23:43:36 +0000
(UTC)
Received-SPF: none (no valid SPF record)
Received: from hosting.mgapi.edu (unknown [82.179.217.2])
by server.engineering.idb (Postfix) with SMTP
for <webmas...@aus-city.com>; Sun, 11 Jan 2009 23:43:35 +0000
(UTC)
Received: from dpkpyv (181.138.153.218)
by hosting.mgapi.edu; Mon, 12 Jan 2009 02:43:44 +0300
This is your problem. If webmas...@aus-city.com is invalid,
then hosting.mgapi.edu MUST NOT ACCEPT MAIL FOR THAT RECIPIENT.
To learn more about blocking invalid recipients on an inbound
transit mail server, see the archives, as this is discussed here
about every other week.
See also:
http://www.postfix.org/postconf.5.html#relay_recipient_maps
http://www.postfix.org/postconf.5.html#relay_domains
http://www.postfix.org/ADDRESS_VERIFICATION_README.html
Wietse
Hi Wietse,
Sorry I am now totally confused as webmas...@aus-city.com is not
invalid it's this address! I already reject invalid addresses on my
server I do not cache all @domain.
These bounces are not email I sent they are forgeries using my address
and the other example gib...@gibgib.com is also a real address.
Can filtering be applied to delete these spam bounces?
If I understand some spammer uses valid email addresses on my server
and sends them via another server. They bounce as the addresses they
spamming are invalid or fail for what ever reason.
As supposedly valid users on the domain sent them they come in as mail
bounces to the postmas...@my domains.
This is what is happening?
I swapped mail program from qmail to postfix the other week. Since
then I am getting 50 of these bounces where I did not get them before
(I use plesk) a day.
I read and read the postfix documentation hence my asking for help.
So far by rejecting invalid users I cut back to 10 per day, but I can
not figure out how to stop these :(
Thanks!
