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[ietf-dkim] ADSP Informative Note on parent domain signing (resent)

2009-04-07 12:14:00

On Apr 6, 2009, at 4:36 PM, Jim Fenton wrote:

There remains some disagreement on whether the "informative note"  
contained in the last paragraph of the text I proposed on March 27  
should appear in the ADSP draft.  The note said:

Informative Note:  ADSP is incompatible with DKIM signing by parent  
domains described in section 3.8 of [RFC4871] in which a signer  
uses "i=" to assert that a parent domain is signing for a subdomain.

This would replace the Note in draft-ietf-dkim-ssp-09, section 2.7.

### This note is not correct.  The incompatibility is not dependent  
upon the i= value, which might be omitted.

Informative Note:  ADSP is incompatible with DKIM signing by parent  
domains described in section 3.8 of [RFC4871] when a parent domain  
signs for a sub-domain within an email-address.  ADSP requires the  
 From email-address domain (Author Domain) and the signing domain  
(SDID) to be the same.

-Doug

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