On Tue, Feb 3, 2026 at 5:21 AM Baptiste Carvello < [email protected]> wrote:
> > I did suggest taking this work in DKIM2, but its completion date is > > farther in the future than would be useful to solve Trent's immediate > > problem. > > how "farther in the future" is it, really? Do you mean mailing list > users will have to wait another *decade* before the IETF addresses a > known interoperability problem? > > ARC is at least half of a working solution. I for one would prefer that > whoever takes the responsibility to obsolete it also takes the other > responsibility to devise its replacement quickly. > > If this has to be the DKIM working group, so be it, but then IMHO they > should adopt the ARC document and organize the transition period as they > see fit, rather than be second-guessed by this working group. That was one of the two options I think we have: 1) Do this, deprecate it quickly, maybe make a vague forward reference to DKIM-prime; or 2) Don't do this, and let DKIMbis deprecate ARC when it publishes its standards track documents. But as you rightly point out, (2) could take many years given recent evidence about how fast this community (doesn't) converge. Your prediction is probably just as good as mine. I hope it won't be a decade, but I'm not taking any bets. So if we're sympathetic to Trent's plight, (1) is the way to go. -MSK
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