Re: Prevention of realying offsite.

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Author: Philip Hazel
Date:  
To: Chris Thompson
CC: woods, exim-users
Subject: Re: Prevention of realying offsite.
On Wed, 14 May 1997, Chris Thompson wrote:

> This was my initial reaction too, but there are different reasons sites
> want to control relaying. Greg's mechanism is perfectly adequate for
> preventing spammers using you as a relay site to bombard the whole world
> from (with the result that you get put on everyone's hate list as well).
> If a recipient domain surreptitiously creates an MX record pointing to
> you, they certainly can't complain about you relaying mail to them!


OK, point taken. As it happens, a bit of work I did a few days ago
should make it fairly trivial to implement "permit_relay_if_we_are_MX".
Idea noted.

-- 
Philip Hazel                   University Computing Service,
ph10@???             New Museums Site, Cambridge CB2 3QG,
P.Hazel@???          England.  Phone: +44 1223 334714