[ietf-dkim] A perspective on what SSP is attempting

Michael Thomas mike at mtcc.com
Fri Dec 7 14:24:18 PST 2007


Eric Allman wrote:
>>       SSP is one organization's attempt to tell another
>>       what it should do with mail that is from a third
>>       organization.
>
> You left out an important part of what SSP should (in my opinion, 
> completely legitimately) try to do:
>
>        SSP is one organization's attempt to tell another what it
>        should do with mail that is from a third organization that
>        claims to be from the first organization.
>
> Of course, SSP also includes guidance on unsigned messages.
That and "organization" gives a lot more legitimacy to the kind of
third parties that SSP is trying stop. But this whole formulation is
problematic though. Better is:

     SSP is an organization's attempt to *inform* receivers what its
     practices are so that receivers can make better disposition decisions
     about mail purporting, but without DKIM substantiation, to have
     originated from that organization.

       Mike


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