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Re: (DMARC) We've been here before, was Why mailing lists

2014-04-18 10:49:16
On Fri, Apr 18, 2014 at 8:41 AM, Theodore Ts'o <tytso(_at_)mit(_dot_)edu> wrote:

So what happens if MUA's, because users don't want to see the "From: "
line when it's been reset to a mailing list address, ends up showing
the users what they want, which is the original sender of the mailing
list post?  It doesn't matter how or where we encode this information,
whether it's in a comment in the rewritten From: field, or in a
"X-Really-From: " header, or in the body of the message.  If there's a
convention, whether it is in a standard or de facto, there **will** be
cases when the users really want the original From header, and then
what will the DMARC promoters do then?

Try to ram through DMARC II that forces alignment of the
"X-Really-From: " header, or whatever else we end up using?


Any answer I give to that would be speculation.  How about this: If MUAs
evolve as a result of all of this, I would hope it's in a direction that
doesn't just create whack-a-mole for the problem DMARC is trying to solve.

-MSK
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