Please, let’s focus on the current issue with is addressing and refining the problem statement.
laura > On 23 Mar 2023, at 20:27, Michael Thomas <m...@mtcc.com> wrote: > > > On 3/23/23 2:52 AM, Alessandro Vesely wrote: >> On Wed 22/Mar/2023 20:31:51 +0100 Michael Thomas wrote: >>> On 3/21/23 8:01 PM, Murray S. Kucherawy wrote: >>> >>>>> 1. What percent of incoming email to a mailbox is through >>>>> resenders and of that what percent resign? >>>> >>>> By "resign" you mean something that has signatures from two domains, >>>> correct? If so, how could one tell whether the originating operator did >>>> or did not attach one or more of them? >>> >>> As in a mailing list makes a breaking change but resigns it with its own >>> domain. The mailing could obviously sign their auth-res which if they have >>> a good reputation the receiver might trust as a reasonable proxy. >> >> >> That's reinventing ARC! > > No, ARC is reinventing DKIM. Needlessly. > > >> >> I too used to be very skeptic about ARC (mainly because of the conjectured >> assumption that ARC sealers can be trusted based on an available reputation >> database, which skews usability toward global providers). I changed my mind. >> >> As a special flavor of DKIM designed around forwarding, ARC can bring real >> means to solving this problem. Indeed, signing or sealing the messages to >> be forwarded can uncover the intent and the maker of the forwarding. >> > I have yet to see anything that convinces me that ARC brings anything new and > useful to the table. After much hand waving when I was trying to figure out > what ARC was about, John Levine finally said that it all boils down to > reputation. Well, guess what. The same goes from DKIM for both originators > and intermediaries. There has always been the ability to build reputation > regardless of the domain doing the signing. This re-chartering of the DKIM wg > wouldn't be happening if that were not true. There seems to be an awful lot > of magical thinking going on with it. > > Mike > > _______________________________________________ > Ietf-dkim mailing list > Ietf-dkim@ietf.org > https://www.ietf.org/mailman/listinfo/ietf-dkim -- The Delivery Experts Laura Atkins Word to the Wise la...@wordtothewise.com Email Delivery Blog: http://wordtothewise.com/blog
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