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Re: [ietf-dkim] How MUAs render mail

2010-10-22 06:17:34


--On 21 October 2010 12:20:33 -0700 Dave CROCKER <dhc(_at_)dcrocker(_dot_)net> 
wrote:



On 10/19/2010 3:11 AM, Ian Eiloart wrote:
It's that, in order to get the marking, she can't spoof a trusted
person's sender address.


DKIM makes no statement about the validity of a "sender" address.

d/
I guess I should have said Author address.

In practice, if I look at mail with yahoo.com author addresses for example, 
I find that with DKIM yahoo.com signatures, they're about a million times 
less likely to be forged than without those signatures. That's not to say 
that yahoo.com forbid forgery, but they may find that their mail stream 
reputation improves if they take measures to prevent forgery.

-- 
Ian Eiloart
IT Services, University of Sussex
01273-873148 x3148
For new support requests, see http://www.sussex.ac.uk/its/help/


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