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From Charles Gregory <>
Subject Re: thanks to thinking people.
Date Thu, 22 Jul 2010 18:03:18 GMT
On Thu, 22 Jul 2010, Benny Pedersen wrote:
> On ons 21 jul 2010 19:09:55 CEST, Alexandre Chapellon wrote
>> You can have forged return-path and /or stollen credentials... in both
>> cases you look like a backscatter source.
> i belive postfix is smart to change forged sender to something that is 
> not fqdn before it bounce :)

A forged sender looks no different than a legitimate sender. Postfix would 
have no way to be 'smart' about this (except for some instances of SPF 
fail, but then why 'bounce'? Why not reject?).

- C

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