In <20041017164416(_dot_)GB26726(_at_)nic(_dot_)fr> Stephane Bortzmeyer
<bortzmeyer(_at_)nic(_dot_)fr> writes:
On Sat, Oct 16, 2004 at 01:48:13AM -0500,
wayne <wayne(_at_)midwestcs(_dot_)com> wrote
a message of 124 lines which said:
Secondly, I'm not sure what to do about the name "SPF". While my
documents are *far* more similar to earlier SPF drafts in
functionality (in particular, spf-draft-200406), SPF is whatever
Meng and Mark say it is. If they say SPF uses XML, then SPF uses
XML.
At the present time, your draft and Mark's are quite similar in
practice: an implementation can comply with both and most (all?) SPF
records comply with both.
No, my draft and Mark's are *not* similar in practice.
Implementations *can't* comply with both. They give difference
answers on many important cases. That's the whole point of creating a
document that restores the semantics of spf-draft-200406 instead of
using SenderID semantics and adding in DoS process limits.
For example, draft-lentczner-spf-00 requires you to use an algorithm
that requires SPF implementations to perform large numbers of DNS
lookups in order to get the "correct" answer. draft-schlitt-spf-00
requires you to use an algorithm that requires SPF implementations to
limit the number of DNS lookups. These two algorithms will give
different results.
As soon as you change the name, I strongly fear that it means a fork:
instead of two competing standards, SPF and Microsoft-ID, we will have
three. This is the last thing we want.
Well, I understand your concerns, but I've told Mark many times
(mostly on IRC) that I found many of things in both the marid-protocol
draft and draft-lentczner-spf will *not* be complied with in libspf2.
I think it would be dangerous to the Internet for anyone to follow the
algorithm required by draft-lentczner-spf-00.
Now, as I've said before, draft-schlitt-spf-00 is intended to document
what libspf2 does. It is not intended to be a standard. I have not
submitted it to the IETF. I don't want to deal with the politics of
dualing SPF standards.
-wayne