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Re: [ietf-dkim] Issue #1520: limiting SSP to statements that inform recipient about (potential) signer actions

2007-12-10 17:51:53
[Subject line changed with item number]

Eliot Lear wrote:
Arvel Hathcock wrote:
  
   The SSP specification needs to be modified to remove all directions
for recipient actions, instead limiting itself to statements about the
actions of a potential signer.
      
This is a manifestation of the thinking that providing guidance to a
receiver about what you might like to see happen is a violation of
some Internet taboo.  I just don't see a problem here.
    

I'd have to agree.  I thought the point of SSP was for the sender to
provide the receiver on guidance on what it would like done with
messages that are believed to be inauthentic.  While I understand Dave's
concern about organizations communicating policy, if this is a start, so
be it.  It's very constrained.
  

Agree with Eliot and Arvel (disagree with issue 1520).

For those that are looking for a precedent, I'd like to point to RFC
2597 (Assured Forwarding PHB Group) as an example of where there is a
requirement on the recipient, in this case of a packet, to handle it in
a particular way.  From Section 2:  "Within an AF class, a DS node MUST
NOT forward an IP packet with smaller probability..."  In any case, the
SSP draft is nowhere near as normative as this.

-Jim
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