mail to another machine on the LAN

[Hiisi]

ke, 2010-10-27 kello 18:37 +0800, Ed Greshko kirjoitti:
> On 10/27/2010 06:20 PM, Hiisi wrote:
<--SNIP-->
> 
> I have seen a router where if you wanted to use an IP address instead of
> a hostname you had to format the email address as user@[192.168.3.30] to
> prevent the router from trying to do a DNS lookup.
> 
> 

Failed :-(
(reason: 550 5.7.1 <user@[192.168.3.30]>... Relaying denied. IP name
lookup f
ailed [192.168.3.20])

Any other suggestions?
-- 
"The medium is the massage."
-- Crazy Nigel