On Thu, 16 Jul 2009 12:25:52 -0400 Victor Duchovni <victor.ducho...@morganstanley.com> wrote:
> On Wed, Jul 15, 2009 at 11:07:00PM +0200, mouss wrote: > > > > Well, a DNS NXDOMAIN error seems a good reason for discarding > > > mail. > > > > even NXDOMAIN may be a temporary error that the admin can fix. > > This borders on sophistry. NXDOMAIN is not a transient error that > resuls from failure to obtain the right answer. It is a correctly > obtained, best available answer. ...unless the zone admin forgot to update the serial number, and the nameservers do not have identical copies of the zone. Although a bit of a stretch, this IS a case where a temporary reject on an NXDOMAIN could result in the message being accepted later with no user action. -- Ben Winslow <winsl...@pa.net>
