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

2010-10-11 05:19:05


--On 8 October 2010 15:38:46 +0100 Charles Lindsey 
<chl(_at_)clerew(_dot_)man(_dot_)ac(_dot_)uk> 
wrote:

On Thu, 07 Oct 2010 19:18:19 +0100, Michael Thomas <mike(_at_)mtcc(_dot_)com> 
wrote:

The larger issue here is would anybody rush out to close this MUST.
I think that it is highly unlikely that anybody is going to care at this
point. That goes for *any* new MUST, IMO: unless it's really a serious
protocol endangering problem, it shouldn't be in the -bis document. Save
new MUST's for genuine emergencies.

But it IS a serious protocol endangering problem.

No, I don't think so. The protocols are quite clear. rfc5322 section 3.6 
says there must be exactly one From: header. If there are two, then you 
don't have a compliant email. Why any software should assign a positive 
trust value (like claiming the Author address has been verified) to a 
non-compliant email, I don't know. Anyway, this is clearly a problem with 
rfc5322 compliance, not with DKIM.

-- 
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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