spf-discuss
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Re: moving on from MARID

2004-09-25 18:10:12
In <3255811(_dot_)1096068892(_at_)[192(_dot_)168(_dot_)0(_dot_)2]> Greg Connor 
<gconnor(_at_)nekodojo(_dot_)org> writes:

I think the idea to tie it and PRA together came soon after, because
we were making an effort to work with MS at the time.

No, RFROM/FRED/SUBMITTER was always tied to the PRA.


                                                       But I also
think the Submitter is distinct from the PRA in an important way: the
Submitter is a new, declared parameter, while the PRA is a heuristic
guess picked from other identities, based on how we think current mail
headers work in practice.

No, the PRA is *not* heuristic, it is supposed to be quite
deterministic so that all systems when given the same email will come
up with the same PRA.  If the PRA doesn't match the SUBMITTER value,
you are supposed to reject the email.


-wayne