On 02/19/2013 01:58 PM, richard lucassen wrote:
> On Tue, 19 Feb 2013 13:49:54 +0100
> Benny Pedersen <m...@junc.eu> wrote:
> 
>>> Any hint?
>>
>> google postfwd
>>
>> postfix can do it with classes, but its more complicated then with 
>> postfwd
> 
> Ok, that seems to be very nice. AFAIUI it can be implemented on the
> backend server. I'd prefer not to touch the front-end servers.
> 

That does NOT sound like a good idea.
If you accept the message on the fronend and then reject is on the
backend, then you will generate a bounce message back to the sender. If
the sender's address is forged, then you will generate backscatter, and
could end up on black lists.

Reject on the frontend servers to avoid this.

HTH,
Mikael


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