You could this with a lookup to a dbm or a mysql database. That is what
we do.
Ron
On Thu, 2003-08-21 at 10:10, Nico De Ranter wrote:
> Hi,
>
> we have a dual mailserver setup: the external mailserver receives
> mails and simply forwards everything for our domains to the internal
> mailserver which does all the real work (including sending outgoing
> mails). Unfortunately, since the external mail server doesn't know
> any of the actual internal mail addresses it will simply accept
> everything for our domains including a zillion spams send to non-existing
> addresses. As a result the external mail server will generate a
> zillion bounces which will in turn be send to a zillion external non-existing
> mail addresses. Sigh... I hate spammers.
>
> Is there a way to make the external mailserver (running exim 4.x)
> check incoming mails against a list of known internal mail addresses
> and still send all mails that match to the internal mail server
> (nothing should be received localy on the external mailserver)?
> This way I assume incoming mails for non-existing addresses will
> be blocked at the incoming SMTP level in stead of generating a bounce
> when the internal mailserver refuses the connection from the external
> mailserver.
>
> I hope my explanation made sense to anyone :-)
>
> Nico
>
>
>
> ---------------------------------------------------------
> "It has been said that there are only two businesses that
> refer to customers as users: illegal drug trade and
> the computer industry."
> ---------------------------------------------------------
> Nico De Ranter
> Senior System Administrator
> Sony Service Center (NSCE/VPE-B)
> Sint Stevens Woluwestraat 55 (Rue de Woluwe-Saint-Etienne)
> 1130 Brussel (Bruxelles), Belgium, Europe, Earth
> Telephone: +32 2 724 86 41 Telefax: +32 2 726 26 86
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim details at http://www.exim.org/ ##
--
Ron McKeating
Senior IT Services Specialist
Internet Services and Software Solutions
Loughborough University
01509 222329
