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From: Barnacle Wes <wes@xmission.com>
Message-Id: <199706270532.XAA02002@obie.softweyr.ml.org>
Subject: Re: Mail Host, POP & DNS Config
To: ljohnston@cyberworld.demon.co.uk (Lee Johnston)
Date: Thu, 26 Jun 1997 23:32:12 -0600 (MDT)
Cc: questions@freebsd.org
In-Reply-To: <33B2BD13.EE398FDA@cyberworld.demon.co.uk> from "Lee Johnston" at Jun 26, 97 08:03:47 pm
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Lee Johnston queried:
> [setup local tcp/ip network, got mail working, now sees:]
> 
> I added these lines to my DNS Zone file:
> 
> 	new2.whickhamcomp.ac.uk.    A	192.168.1.2
> 				MX 10	ser.whickhamcomp.ac.uk.
> 	new3.whickhamcomp.ac.uk     A	192.168.1.3
> 				MX  10	ser.whickhamcomp.ac.uk.
> 
> This worked fine, users could collect mail using POP, and send using
> SMTP. The only problem was that to send mail to a user on the network I
> needed to use the following format for email address:
> 
> 	[user]@ser.whickhamcomp.ac.uk
> 
> I wanted the email address to be in this format:
> 
> 	[user]@whickhamcomp.ac.uk
> 
> To do this I added this line to my DNS Zone file:
> 
> 	whickhamcomp.ac.uk.	IN A    192.168.1.1
> 
> Is this the correct way of doing this?

Close.  You need to enter an MX record for your domain as well:

whickhamcomp.ac.uk.	MX	5	ser.whickhamcomp.ac.uk.

This tells the rest of DNS-world to send mail @whickhamcomp.ac.uk to
the mail exchanger ser.whickhamcomp.ac.uk.