fyi,
abbie
-----Original Message-----
From: ietf-announce-bounces(_at_)ietf(_dot_)org
[mailto:ietf-announce-bounces(_at_)ietf(_dot_)org] On Behalf Of The IESG
Sent: Wednesday, September 22, 2004 3:53 PM
To: IETF-Announce(_at_)ietf(_dot_)org
Cc: ietf-mxcomp(_at_)imc(_dot_)org; Marshall T. Rose; Andrew Newton
Subject: WG Action: Conclusion of MTA Authorization Records
in DNS (marid)
The MTA Authorization Records in DNS (MARID) working group in
the Applications Area has concluded.
The IESG contact persons are Ted Hardie and Scott Hollenbeck.
The mailing list will remain active.
After an assessment of the current state of the MARID working
group, its charter, and its milestones, the working group
chairs and Area Advisor concluded that the MARID working
group should be terminated.
The group was originally chartered with a very tight time
frame, with the expectation that a focused group of engineers
would be able to produce in relatively short order a standard
in the area of DNS-stored policies related to and accessible
by MTAs. The group has had no lack of energy. From the
outset, however, the working group participants have had
fundamental disagreements on the nature of the record to be
provided and the mechanism by which it would be checked.
Technical discussion of the merits of these mechanisms has
not swayed their proponents, and what data is available on
existing deployments has not made one choice obviously
superior. Each represents trade-offs, and the working group
has not succeeded in establishing which trade-offs are the
most appropriate for this purpose. These assessments have
been difficult in part because they have been moved out of
the realm of pure engineering by the need to evaluate IPR and
licensing related to at least one proposal in the light of a
variety of licenses associated with the deployed base of MTAs.
Efforts to reach consensus by compromise and by inclusion
have been attempted on multiple occasions. Despite early
hopes of success after each such attempt, post-facto
recycling of technical issues which these efforts should have
closed has shown that the group remains divided on very basic
issues. The working group chairs and Area Advisor are agreed
that the working group has no immediate prospect of achieving
its primary milestone:
Aug 04 Submit working group document on MTA Authorization
Record in DNS to PS
Rather than spin in place, the working group chairs and Area
Advisor believe that the best way forward is experimentation
with multiple proposals and a subsequent review of deployment
experience. The working group chairs and Area Advisor intend
to ask that the editors of existing working group drafts put
forward their documents as non-working group submissions for
Experimental RFC status. Given the importance of the
world-wide email and DNS systems, it is critical that
IETF-sponsored experimental proposals likely to see broad
deployment contain no mechanisms that would have deleterious
effects on the overall system. The Area Directors intend,
therefore, to request that the experimental proposals be
reviewed by a focused technology directorate. This review
group has not yet been formed but, as with all directorates,
its membership will be publicly listed at
http://www.ietf.org/u/ietfchair/directorates.h> tml once it has
been constituted.
Concluding a group
without it having achieved its goals is never a pleasant
prospect, and it is always tempting to believe that just a
small amount of additional time and energy will cause
consensus to emerge. After careful consideration, however,
the working group chairs and area advisor have concluded that
such energy would be better spent on gathering deployment experience.
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