[Gllug] Rejecting mail at backup MX

Jack Bertram jack at jbertram.net
Tue Feb 10 12:15:15 UTC 2004

* Bruce Richardson <itsbruce at uklinux.net> [040210 11:58]:
> On Tue, Feb 10, 2004 at 10:34:14AM +0000, Jack wrote:
> > Looking at my backup MX maillogs, I see that it spends a lot of time
> > trying to deliver mail to users that don't exist.  This is because it is
> > configured to relay mail to my primary MX (which rejects mail to unknown
> > users).
> > 
> > What's the canonical way to prevent this? 
> There is no canonical way to deal with it.  Which mta do you use?  Exim 4
> offers a very simple mechanism for dealing with it but that's no use to
> you if you are using something else.


I use $local_recipient_maps together with $virtual_maps on my primary MX.
On the backup MX, I have the appropriate domains in $relay_domains.

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