Petr Novotny <[EMAIL PROTECTED]> writes on 5 August 1999 at 17:36:58 +0100
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> > A host that looks non-existent could have have its DNS missing or
> > down, or its link down. Keeping it for a week gives them a chance to get
> > it back up.
> >
> > On the other hand, of course it means you don't discover you mistyped the
> > address for a week.
>
> That's plainly not true. Only if you - by chance - hit an address for
> which you can't get an authoritative "don't exist" answer, the mail
> gets deferred.
>
> Just now I tested to mail (positively non-existing)
> [EMAIL PROTECTED] and the mail was back bounced in a second.
The cases I described would mostly be soft failures, and would wait a
week. If you can get an authoritative DNS answer and the answer is
NO, that's a hard failure and it will bounce; but if the main DNS is
down or connectivity to it is down, you get a non-authoritative NO,
and qmail waits for better.
--
David Dyer-Bennet ***NOTE ADDRESS CHANGES*** [EMAIL PROTECTED]
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