Re: [exim] Blocking hosts without MX/A records in DNS

On Mon, Jan 08, 2007 at 12:42:14PM +0100, Heiko Schlittermann wrote:
> as option for your smarthost router should do the trick. But
> additionally you'll need to install some router which is able to verify
> the addresses. Probably it will be a dnslookup router, and, as order
> matters, it has to be *after* the smarthost router.

or look into using verify_only

--
Dave Evans
Power Internet
http://www.powernet.co.uk/~davide/about-powernet.txt