Re: Allowing relay for certain sender domains

From: Ralf Hildebrandt (no email)
Date: Fri Mar 01 2002 - 14:49:52 EST


On Fri, Mar 01, 2002 at 08:34:05PM +0100, Alexander Skwar wrote:

> On this server, I'd like to setup postfix in such a way, that it relays
> mails if the senders From is from certain domains. However, postfix
> itself will not be an MX for these domains and the sender will also not
> always be on a certain IP.

Sacrilege! Never do relaying decisions based on the sender address
(which can be forged by any idiot spammer out there)

> How could I do that and how risky is this in terms of being an open
> relay?

With this you ARE an open relay.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
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