[84957] in North American Network Operators' Group
Re: Weird DNS issues for domains
daemon@ATHENA.MIT.EDU (Petri Helenius)
Thu Sep 29 13:26:10 2005
Date: Thu, 29 Sep 2005 20:25:27 +0300
From: Petri Helenius <pete@he.iki.fi>
To: John Dupuy <jdupuy-list@socket.net>
Cc: nanog@nanog.org
In-Reply-To: <6.0.3.0.2.20050929121444.053aa780@mail.socket.net>
Errors-To: owner-nanog@merit.edu
John Dupuy wrote:
>
> If you are talking about strictly http, then you are probably right.
> If you are hosting any email, then this isn't the case. A live DNS but
> dead mail server will cause your mail to queue up for a later resend
> on the originating mail servers. A dead DNS will cause the mail to
> bounce as undeliverable. (Oh, and if any of your subs are on mailing
> lists, they will be unsubscribed en masse. A nice way to challenge
> your call center...)
>
>
A MTA bouncing mail on temporary DNS failure would be out of spec, horribly.
Pete
