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From: Ted Hardie <hardie <at> qualcomm.com>
Subject: MARID to close
Newsgroups: gmane.ietf.mxcomp
Date: 2004-09-22 16:31:26 GMT (3 years, 40 weeks, 5 days, 10 hours and 52 minutes ago)

After an assessment of the current state of the MARID working group, 
its charter, and its milestones, the working group chairs and Area 
Advisor have 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.html 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.

				regards,
					Ted Hardie
					co-Area Director, Applications