There's a distinction though.  ARC tells you "that guy over there said the
original message passed", and you have to trust it.  On the other hand, the
transformations draft, when it works, hands you the original message, and
you don't have to make that trust assessment.

I understand that, and I still don't see why it's useful.

It's hard to imagine a realistic sitatuation where a recipient system would strip off the changes and show the original message, so the recipient has to trust that the mediator doesn't make malicious transformations. So if you trust them that far, why wouldn't you also trust them to report the status of incoming mail?

Regards,
John Levine, [email protected], Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly

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