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In message <[email protected]>, Alessandro
Vesely <[email protected]> writes

>it seems to me that the WG is somehow resting after most of the work is 
>finalized.  So I ask if we can utilize this time to discuss and possibly 
>experiment with my fix-forwarding draft[*].

I expect this belongs in MAILMAINT ... but for chairs to say

>However, it is very easy to implement, even 
>trivial.  It designs a practical way to get ARC up and running, and thus could 
>provide relief until DKIM2.

IMO it is not all that simple ... and note that there is a simpler idea
being discussed (by some of the usual suspects) to use OAUTH2 to
directly indicate that a sign-up to a newsletter or mailing list is
authorised ...  but there are wrinkles to that as well.

>I hope that the working group can now take the draft seriously and test it.

Perhaps you could elucidate step 9 more clearly

        Example.com recognizes messages that belong to this mail flow by
        (1) authenticating example.org and (2) checking the List-ID:
        header field.

what does "authenticating example.org" mean ??  I think it is what is
buried in the middle of #6 but I am not 100% sure.

also, there's no reason not to use "allowlist" and "blocklist" and I
suggest you do so to avoid various trans-Atlantic sensitivities.

Also one of the wrinkles I didn't mention above applies here ...

"Receiving domains cannot reject messages belonging to an accepted
agreement"  ...  I expect you want that to be a MUST NOT and that will
not work out in the case of a shared sending IP because other abuse sent
from that IP will (sooner or later) cause the IP to be blocked and the
authorised flow will suffer the same fate as the abusive mail.

- -- 
richard                                                   Richard Clayton

Those who would give up essential Liberty, to purchase a little temporary 
Safety, deserve neither Liberty nor Safety. Benjamin Franklin 11 Nov 1755

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