In <43C544D8(_dot_)47BA(_at_)xyzzy(_dot_)claranet(_dot_)de> Frank Ellermann
<nobody(_at_)xyzzy(_dot_)claranet(_dot_)de> writes:
Dick St.Peters wrote:
What do you mean when you describe spf2.0/mfrom as
"non-existing"?
There's no document defining it. It was defined for a very
short time in draft-ietf-marid-mailfrom-00 by Mark Lentczner.
This is not true. As Dick St. Peters correctly points out, this is
defined in the SenderID specs. Go read the drafts.
When MS submitted updated SenderID specs in the fall of 2004, the
reworked everything to depend, somewhat correctly, on the MarkL's
spf-classic draft. They didn't do a very good job of it, but it
mostly works.
Nobody wants or needs this separation in practice, because
it makes no sense. Any decent sending MTA has its own host
name not used as LHS of mail addresses, therefore it never
needs its own HELO scope, it already has its own name.
No, in practice, people *do* use their email address as their HELO
domain. Hotmail, for example, uses hotmail.com for it's helo domain.
(1) Where does the number "1,700,000 domains" come from ?
See: http://www.openspf.org/services.html
I put the 1.7 million number there because that was how many domains I
had found with SPF records the last time I ran a survey.
-wayne
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