On Mon, Mar 04, 2002 at 04:17:40PM +0100, CarolO@??? wrote:
> Thanks for your answer.
>
> Maybe I have to make more clear:
>
> The goal is to find a mechanism to block open relay servers from customers.
> I see via inbound mail which domains are delivered on a certain ip address.
> For example foo.com is delivered on ip address 192.168.1.2. So my simple
> mind says, that I can accept outbound mail from foo.com from 192.168.1.2.
> So if this customer tries to send from domain spam.com from ip address
> 192.168.1.2, I can block this mail, because I know that 192.168.1.2 is not
> responsible for spam.com. I know this based on the inbound mail
> configuration.
>
> Is this a standard feature in Exim ?
No, because it's an absolutely insane idea. You're forgetting about the
existence of aliases and forward files, to say the least, not to mention
the fact that often, for a large ISP, the outbound relays will not be the
same as the inbound MX hosts.
MBM
--
Matthew Byng-Maddick <mbm@???> http://colondot.net/
