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Re: [ietf-dkim] ISSUE 1573: Modify ADSP Lookup Procedure

2008-06-02 15:26:13


Dave Crocker wrote:
Modify ADSP Domain Existence procedure.

Use draft-levine-dkim-adsp-00, Section 4.3. ADSP Lookup Procedure as input to 
discussions.


Per the Levine draft, this also entails addition of:

      <section anchor="applicability" title="ADSP Applicability">
         <t> ADSP as defined in this document is bound to DNS. For this reason,
           ADSP is applicable only to Author Domains with appropriate DNS
           records (see Note below). The handling of other Author Domains is
           outside the scope of this document. However, attackers may use such
           domain names in a deliberate attempt to sidestep an organization's
           ADSP policy statements. It is up to the ADSP verifier implementation
           to return an appropriate error result for Author Domains outside the
           scope of ADSP. <list style="hanging">
             <t hangText="Note:  "> The results from DNS queries that are
               intended to validate a domain name unavoidably approximate
               the set of Author Domains that can appear in legitimate email.
               For example, a DNS A record could belong to a device that does
               not even have an email implementation. It is up to the verifier
               to decide what degree of approximation is acceptable.</t>


to the Section 3. Operation Overview.

d/
-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net
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