On Sun, Mar 30, 2008 at 11:53:37PM -0400, John C Klensin wrote:
> > It was obvious 20+ years ago that MX processing was broken
> > as there was no way to say "I don't want email".
>
> First, it may have been obvious to you, but it wasn't obvious to
> many of us. In the general case, it still isn't. But you
> stated the situation exactly correctly. "MX 0 ." means "I
> don't want email". "SRV 0 0 ." doesn't really indicate "no
> service", it indicates "please do look for that service here".
actually, it means the DNS admin doesn't want SMTP
connections set to the indicated node.
> While it is better than interpreting the lack of a bit in a WKS
> record as "no service", it is still nothing more than an attempt
> to use the DNS to say "please don't try a mail connection to
> this domain".
right.
--bill
Opinions expressed may not even be mine by the time you read them, and
certainly don't reflect those of any other entity (legal or otherwise).
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