The best doc IMO is DNS and Bind from O'Reilly. If you are goiung to be administering DNS suggest you buy it.
I assume you have a server that does DNS for the zone called "systematic.lan". If you are using Bind, add to the zone file after the ORIGIN statment (or the @ symbol) a record like: IN MX 10 mail then, if necessary, add an A record for the mail server. mail IN A ip.address.of.machine It will end up something like: $TTL 3600 @ IN SOA dns.systematic.lan. domainadmin.systematic.co.za. ( 17 ; serial 3H ; refresh 15M ; retry 1W ; expire 3600 ) ; default IN NS dns IN MX 10 mail mail IN A 192.168.12.69 <etc...> IF you are using Windoes, select "New Mail Exchanger" and fill in the values. Make sure there is an A record for the mail server. Do NOT point an MX name to a CNAME record ("Alias" on Windoes). You have been warned! On Wed, 31 Jul 2002, Trevor Fraser wrote: - Hello Stephen, - - I've done some work on our DNS server, but I am unfimiliar with "a valid MX - record". How do I go about this, or if you prefer, do you know of a nice - doc on the subject. - - Thanks, Trevor. - - ----- Original Message ----- - From: "Stephen Carville" <[EMAIL PROTECTED]> - To: "Trevor Fraser" <[EMAIL PROTECTED]> - Cc: <[EMAIL PROTECTED]> - Sent: Tuesday, July 30, 2002 7:27 PM - Subject: Re: Sending mail from LAN. - - - > Set up your DNS server to return a valid MX record for systematic.lan. - > - > On Tue, 30 Jul 2002, Trevor Fraser wrote: - > - > - Hello all. - > - - > - I've managed to sort out sending mail message to [EMAIL PROTECTED] - , - > - many thanks to all who replied. This mailling list is worth more than - > - gold...every tried getting support from the present leading software - > - developers....fat chance you little drop in the ocean!!! Just give a - > - though for what we've got going here guys and girls. - > - - > - Sorry for the side track, I just rerealised how blessed Linux users are. - > - - > - The problem now is that our LAN domain doesn't exist on the internet, - and - > - our mail-server only accepts mail from existing domains. How do I send - mail - > - from an existing domain, or at least appear to be? - > - - > - > -- - > -- Stephen Carville - > UNIX and Network Administrator - > DPSI (formerly Ace USA Flood Services) - > 310-342-3602 - > [EMAIL PROTECTED] - - -- -- Stephen Carville UNIX and Network Administrator DPSI (formerly Ace USA Flood Services) 310-342-3602 [EMAIL PROTECTED]