[ietf-dkim] Requirements clarification: Standard for resource record name space collision

[Scott Kitterman]

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*** 474,480 ****
            expectation is "few".]

     3.  Discovery mechanism MUST NOT overload semantics of existing DNS
!        resource records where name space collisions are possible.

  5.2.  Transport requirements

--- 479,485 ----
            expectation is "few".]

     3.  Discovery mechanism MUST NOT overload semantics of existing DNS
!        resource records where name space collisions are reasonably likely.

  5.2.  Transport requirements

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Making name space collision impossible (the written requirement) is a high 
bar.  Higher than was used for DKIM base.  Reasonably likely seems like a 
better standard.  Impossible would seem to require a new RR.

Scott K