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Re: [ietf-dkim] value-added DKIM-ish enhancements )was - Re: Weird i= in client mail)

2013-06-19 00:46:00

On Jun 18, 2013, at 7:33 PM, Tony Hansen <tony(_at_)att(_dot_)com> wrote:

Absolutely. This really has nothing to do with increasing or decreasing the 
likelihood of a message making it to the mailbox. It has to do with being 
able to make additional positive value judgements about messages that *have* 
made it to your inbox. People keep incorrectly conflating the making of 
positive statements about a message with trying to keep messages from the 
inbox; such thinking is what leads to such erroneous documents as 

DKIM shines with telling you positive verifiable statements about an email 
message and its attributes. It's the messages that pass those positive 
verifications that I'm interested in for such additional tests.

Dear Tony,

What do you find to be in error in draft-otis-dkim-harmful?  The latest version 
attempts to more clearly explain this concern.

Trust in a DKIM signature is being used as a basis for acceptance as described 
in section 5.4 in [RFC5863].  Since neither SMTP nor DKIM check for invalid 
prefixed header fields, TBTB domains  offer a simple means for malefactors to 
have their deceptive messages delivered to their victim's inbox.  This problem 
is real.

Douglas Otis

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