On Wed, 06 Jun 2007 23:23:20 +0100, Hector Santos <hsantos(_at_)santronics(_dot_)com>
wrote:
Douglas Otis wrote:
To that end:
Obsoleting the A record discovery process will establish one location
for _any_ email related policy record, and not just that for DKIM.
If I understand you, this isn't working to work Doug. A records are
required.
Are you familiar with the MX lookup and expansion process?
In case you didn't, the MX query does not always result in IP
addresses. The IP addresses are obtained in A lookups of the host names
by provided by the MX records.
In other words, not all MX query gives you IP addresses to try.
So in that case, you can have an MX that directs you to the domain
nomail.invalid (which has no A record, of course) and that is the end of
the matter. What is wrong with that?
--
Charles H. Lindsey ---------At Home, doing my own thing------------------------
Tel: +44 161 436 6131
Web: http://www.cs.man.ac.uk/~chl
Email: chl(_at_)clerew(_dot_)man(_dot_)ac(_dot_)uk Snail: 5 Clerewood Ave, CHEADLE, SK8 3JU, U.K.
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