From: Mark Goodge (no email)
Date: Tue Jul 01 2008 - 05:42:02 EDT
Nicolas Letellier wrote:
> On Tue, 01 Jul 2008 11:04:53 +0200
> mouss <> wrote:
>> If you have relay_recipient_maps set, then postfix will _reject_, not
>> bounce. it is the "previous" MTA that generates the bounce. This is why
>> you should reject on the first server that you manage and let others
>> bounce or do whatever they want.
>
> But, if Postfix rejects a mail, it sends a mail to inform that the mail has been rejected or not?
No. The server that has the mail rejected sends the mail. Consider this
sequence of events:
1. User sends mail out via server A.
2. Server A contacts server B to pass the message on.
3. Server B accepts the mail.
4. Server B contacts server C to pass the message on.
5. Server C rejects the mail.
6. Server B emails the sender to say that the mail was rejected by C.
You only need to worry about this if you manage server B (as it makes
you a potential source of backscatter). If you manage server C, then all
you need to do is reject mail you don't want.
Mark
-- http://mark.goodge.co.uk - my pointless blog http://www.good-stuff.co.uk - my less pointless stuff
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