[62716] in North American Network Operators' Group
Re: VeriSign SMTP reject server updated
daemon@ATHENA.MIT.EDU (Stephen J. Wilcox)
Sun Sep 21 11:20:14 2003
Date: Sun, 21 Sep 2003 15:17:34 +0000 (GMT)
From: "Stephen J. Wilcox" <steve@telecomplete.co.uk>
To: Daniel Roesen <dr@cluenet.de>
Cc: nanog@nanog.org
In-Reply-To: <20030921121832.A14901@homebase.cluenet.de>
Errors-To: owner-nanog-outgoing@merit.edu
On Sun, 21 Sep 2003, Daniel Roesen wrote:
> On Sun, Sep 21, 2003 at 10:08:27AM +0000, Stephen J. Wilcox wrote:
> > What if you change the behaviour of the GTLD named daemons to return
> > an NXDOMAIN response to any MX queries on non-existent domains, you
> > will then take this whole debate on SMTP out of the equation ...
>
> MTAs fall back to the A RR if there are no MX RRs for a given
> recipient domain.
That was my understanding but on checking with Paul he said that NXDOMAIN means
dont do further checks so dont look for A...
Steve
