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Alex van den Bogaerdt wrote:
On Wed, Jan 10, 2007 at 04:44:57PM +0100, Frank Ellermann wrote:
Julian Mehnle wrote:
Right, if "something" includes an empty answer packet with 0 RRs.
That's different. Ignore that thread, I think it's clearer based
on your table adding the case "something but no v=spf1".
From our point of view, records returned but not starting with
"v=spf1 " or being exactly "v=spf1", are exactly the same as the
DNS answer "domain does exist, but no records of requested type"
(in other words: 0 answers). It doesn't matter if this is in the
SPF result set or the TXT result set.
Right.
My opinion:
If the SPF type RR returns no SPF v=spf1 records, this MUST mean the TXT
type RR will also have no v=spf1 records.
I would very much like to adopt that opinion, however there's still reality
showing that in most cases there is a TXT-type record but no SPF-type one.
Now, _if_ an implementation chose to query only the SPF-type (which isn't
really recommendable, but we conceded that option to the IETF), then I can
of course see returning "None" as justified. But if an implementation
claims to query both types, then the above conclusion of yours just
doesn't hold up to reality.
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