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Re: [ietf-dkim] THIS IS A MULTIPLE 5322.FROM MESSAGE

2010-10-06 10:54:50
On Wed, Oct 6, 2010 at 9:15 AM, Dave CROCKER <dhc(_at_)dcrocker(_dot_)net> 
wrote:


On 10/6/2010 8:00 AM, Steve Atkins wrote:
It also changes what DKIM means,
...
Either the message has a valid DKIM signature, or it does not. If the
signature is valid, then the signing domain takes responsibility for the
message, subtly malformed or not. Just because the message lacks a Date:
header or has bare linefeeds doesn't mean that the signing domain isn't
responsible for it.

THis is a particularly clean and precise attention to DKIM's job, nicely
filtering out issues that are not part of DKIM's job.

In particular, it makes the multiple From: issue entirely irrelevant to DKIM.

If you put back this piece of what Steve said:

To comply with that MUST every DKIM verifier would have to
include a full 5322 verifier. That's a fairly high bar.

Do you come to the same conclusion? Steve, do you agree with Dave's conclusion?


-- 
Jeff Macdonald
Ayer, MA
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