I support Trent’s charter.

Ken.


On Mon 9 Mar 2026 at 14:50, Seth Blank <[email protected]> wrote:

> Let's come back to the charter, please.
>
> To those who chimed in on this thread, it seems to me that most of you are
> OK with the charter as Trent proposed it, due to the resistance to Ale's
> proposed language. Can you please be explicit on if you think Trent's
> proposed charter is adequate for the sake of determining consensus?
>
> We can talk merits of ARC and how to conclude the experiment AFTER a
> charter is locked in and approved by the IESG.
>
> Seth, as Chair
>
> On Mon, Mar 9, 2026 at 10:15 AM Alessandro Vesely <[email protected]> wrote:
>
>> Yes, ARC has been tested, but without any authorization component.  This
>> allows
>> us to identify the forwarder and learn its filtering approach, but
>> without
>> knowing whether the forwarding is authorized, this information is useless.
>>
>> Different solutions, such as DKIM2, are supposedly better than ARC, but,
>> again,
>> they don't provide any authorization system.  Therefore, they probably
>> won't
>> solve the mailing list problem either.  And they won't be coming anytime
>> soon.
>>
>> I'm asking the WG to consider a simple authorization scheme which could
>> address
>> the forwarding issue.  This draft was not considered at the time because
>> Phase
>> II, "Specification of DMARC Improvements to Support Indirect Mail Flows",
>> was
>> considered complete with the publication of ARC.
>>
>> In this context, once authorization is granted, ARC appears to be
>> slightly
>> preferable to DKIM for authentication, thanks to the addition of the AAR
>> field.
>>   This is not /focusing/ on ARC, but simply using it for what it's worth.
>>
>>
>> Best
>> Ale
>>
>> On Mon 09/Mar/2026 12:49:58 +0100 Laura Atkins wrote:
>> > +1 to Alex’s message. There are ongoing efforts to address the damage
>> DMARC has done to legitimate indirect mail flows. ARC has been tested and
>> no one working with large mail flows seems to think that it’s a viable
>> solution. Focusing on ARC will prevent other solutions from being tested
>> and tried. It’s time to give up on ARC and look at different solutions.
>> >
>> > laura
>> >
>> >> On 9 Mar 2026, at 11:44, Brotman, Alex <[email protected]>
>> wrote:
>> >>
>> >> Doug,
>> >>
>> >> I’m not sure why you equate lack of support for ARC with lack of
>> interest in solving the “mailing list” problem.  I think there are many
>> parties interested in solving that case, and they’ve determined that ARC
>> isn’t that solution.  Or perhaps, isn’t the solution they want due to other
>> issues that come with implementation (which are enumerated in Trent’s
>> draft).  I’d say based on the interest in DKIM2, there are parties
>> interested in resolving that particular problem.
>> >>
>> >> --
>> >> Alex Brotman
>> >> Sr. Engineer, Anti-Abuse & Messaging Policy
>> >> Comcast
>> >>
>> >> From: Douglas Foster <[email protected] <mailto:
>> [email protected]>>
>> >> Sent: Monday, March 9, 2026 7:15 AM
>> >> To: Laura Atkins <[email protected] <mailto:
>> [email protected]>>
>> >> Cc: IETF DMARC WG <[email protected] <mailto:[email protected]>>
>> >> Subject: [dmarc-ietf] Re: Proposed Recharter to Conclude the ARC
>> Experiment
>> >>
>> >> I would certainly like to believe that evaluators need no advice
>> because they know what they are doing, but the evidence suggests otherwise.
>> >>
>> >> The "mailbox problem" indicates that evaluators are not acting in the
>> interest of their users, by blocking acceptable messages that users want.
>>  It also indicates, indirectly, that evaluators are failing their users
>> because they are configured to accept some malicious impersonation that
>> they should be blocking.
>> >>
>> >> Doug Foster
>> >>
>> >>
>> >>
>> >>
>> >> On Mon, Mar 9, 2026 at 6:45 AM Laura Atkins <[email protected]
>> <mailto:[email protected]>> wrote:
>> >>
>> >> On 8 Mar 2026, at 20:59, Murray S. Kucherawy <[email protected]
>> <mailto:[email protected]>> wrote:
>> >>
>> >> I think we're going in circles here.  You're saying there might be
>> value in ARC worth pursuing, and we won't know unless we try.  But for
>> "try" to happen, there need to be people interested in putting in the work
>> to get to the answer.  I'm not the one that gets to make that call, but I
>> think there's a dearth of interest in doing so.
>> >>
>> >> Putting it in the charter doesn't guarantee people will show up to do
>> the work.  In fact, part of chartering a WG is asking "Who will do this
>> work if we charter it?" and, well, I personally think the answer is plain.
>> >>
>> >> Following on to this. Big mailbox providers have done the work to
>> implement ARC signing on their mail. We’ve heard from a few major mailbox
>> providers they have looked at using the data on the inbound. They aren’t
>> interested in working on more experiments in ARC.
>> >>
>> >> I don’t think there’s anything here and we should just end the ARC
>> experiment.
>> >>
>> >> laura
>> >>
>> >> --
>> >> The Delivery Expert
>> >>
>> >> Laura Atkins
>> >> Word to the Wise
>> >> [email protected] <mailto:[email protected]>
>> >>
>> >> Delivery hints and commentary: http://www.wordtothewise.com/blog <
>> https://urldefense.com/v3/__http:/www.wordtothewise.com/blog__;!!CQl3mcHX2A!Dln8pxYfwtpEt76WgweiNBTmH9WTb6Wv426tK9l6CB3qC-WZ6H5QG_ZYfVe5RsJ0jADdlwQmwaJ7n7p_O-7N_05kTMLoNCQ$
>> >
>> >>
>> >>
>> >>
>> >>
>> >>
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>> >
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