From: Stephen J. Wilcox (no email)
Date: Sun Sep 21 2003 - 11:17:34 EDT
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
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