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RE: [ietf-dkim] Re: ISSUE 1525 -- Restriction to posting by first Author breaks email semantics

2008-01-17 13:02:50




From: jon(_at_)callas(_dot_)org
To: mike(_at_)mtcc(_dot_)com
Subject: Re: [ietf-dkim] Re: ISSUE 1525 -- Restriction to posting by first    
Author breaks email semantics
Date: Wed, 16 Jan 2008 16:52:03 -0800
CC: dcrocker(_at_)bbiw(_dot_)net; ietf-dkim(_at_)mipassoc(_dot_)org

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Please translate your grouchiness into concrete suggestions on what
if anything should change in draft. There are so many different issues
being discussed here that your +1 one is essentially useless because
it doesn't track to anything actionable.

I think we should fall back to a minimal SSP that contains only the "I- 
SIGN-ALL" policy, and we let the real-world deployment and desires for  
additions control more in SSP than that. SSP2 can start in a year or  
two, and then we see what is needed in the real world. We can even  
have experimental things in the field to test them.

      Jon



I don't think I'd have a problem with only have a "I sign everything" policy. I 
think the bigger issue is, as a verifier, who is the "I" who I should be 
looking for that assertion from when I have an unsigned message. The options 
appear to be, check the domain of the Sender, check the domain of the first 
address in the From: (the currently defined behavior), or check all addresses  
in the From: .

My personal preference would be the latter for the entirely selfish reason 
that, if any domains can make that assertion it immediately becomes useful. The 
same does not appear to me (at least yet) to be true for the Sender.

Robert




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