[57327] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: An A record is an MX record and is a missing MX....

daemon@ATHENA.MIT.EDU (Craig Partridge)
Thu Apr 3 17:12:53 2003

To: "Gerardo Gregory" <ggregory@affinitas.net>
Cc: Richard Irving <rirving@onecall.net>, nanog@merit.edu
In-Reply-To: Your message of "Thu, 03 Apr 2003 15:58:53 CST."
             <courier.3E8CAE9D.00002141@affinitas.org> 
Date: Thu, 03 Apr 2003 17:10:52 -0500
From: Craig Partridge <craig@aland.bbn.com>
Errors-To: owner-nanog-outgoing@merit.edu



In message <courier.3E8CAE9D.00002141@affinitas.org>, "Gerardo Gregory" writes:

>Since then I have learned that some MTA's will look for an A record if it 
>cannot find an MX record and use the A record instead. 

That's indeed what the standard says.  I put it into RFC 973 after consulting
with Jon Postel about preferred ways to ensure robust delivery.

Craig

home help back first fref pref prev next nref lref last post