On 11/20/24 06:43, Murray S. Kucherawy wrote:
On Mon, Nov 18, 2024 at 9:11 AM Dave Crocker <d...@dcrocker.net> wrote:
On 11/6/2024 6:54 PM, Wei Chuang wrote:
"message algebra
<https://datatracker.ietf.org/doc/html/draft-gondwana-dkim2-modification-alegbra-00>"
This topic has been a point of fascination for some years. It is,
indeed, attractive.
It is also a research topic, absent a body of experience showing
it works on essentially all email traffic.
That's not meant to argue against it, but rather to place the
construct in an area of unknown reliability, efficacy and
usability, so that there is effort to move to a place of
engineering knowns.
Indeed, I remain puzzled by the number of times the idea has been
dismissed as unworkable in contrast to the excitement it appears to be
generating today.
That said, it's my assumption that this renewed effort will include a
significant period of running something like this at scale with
appropriate interoperability testing to verify its efficacy before
sending it to the Standards Track, much as we did with DKIM itself.
I called out this recurrence in my response to one of Bron's separate
threads, and it is part of why I want to see this project - with so much
enthusiasm and so many engineering resources promised - explore the
topic thoroughly.
Where between 50 and 100% will the percentage of expressible message
alterations fall, and according to whose corpus? Will we have a great
enough diversity of contributors to make sure we aren't missing
important use cases?
Just the project of cataloging common message alterations seems like a
very useful exercise. (Not because I can't draw up a list, but because I
want to see the ones I would miss that other people have observed.)
--S.
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