postfix-users October 2011 archive
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Re: maillog
From: Reindl Harald <h.reindl_at_nospam>Date: Mon Oct 31 2011 - 13:42:39 GMT
To: postfix-users@postfix.org
you MUST NOT stop bounces
you have to look why they are happening and solve
the root-cause which is maybe you do not reject
messages to non-existent rcpt directly
if you accept a message and it can not be finally
delivered the server sends a NDR, if you reject
the message the sending machine is responsible
for the NDR - so maybe you are a backscatter
Am 31.10.2011 14:31, schrieb Amira Othman:
> T have tested server for open relay and it is not open already
> How can I stop this kind of mail ?
>
> On the contrary, this is almost always a sign of trouble. Why was a
> bounce sent?
>
> Common causes: backscatter, spammer exploit, open relay ...