I am having trouble properly setting up mx entry for a subdomain on my server. I have the regular domain which works fine (default settings) and a bunch of sub domains. Each subdomain in the main domain's dns entry has two lines:
subdomain 14400 A IP
14400 A IP
I need to point one of the subdomains mx entry to the main domain. So, I added the following to the dns entry:
subdomain 14400 MX 0 maindomain. (yes, with the end period)
Seems to not work according to bounced email messages below
---------- Forwarded message ----------
From: Mail Delivery Subsystem <firstname.lastname@example.org>
Date: Tue, 15 Feb 2005 04:59:51 -0800 (PST)
Subject: Delivery Status Notification (Failure)
This is an automatically generated Delivery Status Notification
Delivery to the following recipient failed permanently:
Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 10): 550 email client.
----- Original message -----
Received: by 10.54.16.7 with SMTP id 7mr44146wrp;
Tue, 15 Feb 2005 04:59:48 -0800 (PST)
Received: by 10.54.13.56 with HTTP; Tue, 15 Feb 2005 04:59:48 -0800 (PST)
Date: Tue, 15 Feb 2005 07:59:48 -0500
From: TeleKawaru <email@example.com>
Reply-To: TeleKawaru <firstname.lastname@example.org>
Subject: Here's an email!
----- Message truncated -----
Could someone please explain what I did wrong here?