On Fri, May 29, 2009 at 5:22 PM, John R. Levine <[email protected]> wrote:
>> I don't understand what "cruft" you think I'm talking about.
>
> Telling people that it is reasonable to add a chain of A-R headers to
> messages with broken signatures, and expecting recipients to apply some ill
> defined algorithm to decide how much they believe each level of alleged
> signature.

What part of my message makes you think that's what I'm suggesting?
Surely not the part where I say, "Chaining isn't the point.".  And it
certainly can't be the part where I say, "remove all previous sigs AND
all previous A-R".

I think it's a terrible idea to (1) leave signatures in a message
after you break them, (2) add A-R without removing any already there,
or (3) add A-R without a signature covering it.

Or are you just trolling?

> I would really like to remove l= from DKIM to make it clear that it is not a
> good idea to even try to guess the history of a message based on signatures
> that don't verify and cover the whole messag.

Yes, that seems to be the consensus, and I agree with that.

Barry, as participant
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