North American Network Operators Group
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Re: Weird DNS issues for domains
- From: Petri Helenius
- Date: Thu Sep 29 13:27:23 2005
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
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