Re: [Exim] Accepting messages from local users + relay_hosts

On Wed, 21 Aug 2002, Suresh Ramasubramanian wrote:

> wash@??? (Odhiambo G. Washington) [Wednesday, August 21, 2002 1:20
> AM]:
>
> > This is probably very trivial. I need to accept mail from local users and
> > even hosts I relay for even when my uplink is down (lookup fails).
> > In many cases when my upling fails, my server rejects (temporarily) saying
> > lookup failed.
> > Does disabling host_lookup suffice for this? Can I still retain recipient
> > vrf?
>
> Approach it from the other direction - have a caching only nameserver setup
> locally. and/or hardwire entries into /etc/hosts.

Or even better, lists the hosts you relay for by their numeric IP
address, then you dont have to worry about DNS lookups for them.