Dave Crocker writes:
MWW> the computer thinks a bit,
MWW> and you get a well-defined PASS or FAIL or NEUTRAL, etc
MWW> response.
That sounds quite a bit about the old joke about the blank space in a
board that is otherwise filled with equations. The scientist responds
to a query by pointing to it and says "that's where a miracle
happens".
So, yes, your description does indeed sound simple, but that to be
because you left out all of the interesting stuff.
Well, it's _possible_ to leave out the interesting stuff if that's
defined as a local matter.
If the "SPF publisher" is responsible for interpreting his own policy,
which is queried via RPC by mail recipients, then there's no reason to
specify the interesting stuff as an internet standard.
The "SPF publisher" need not run any software server - something like
the pobox SPF wizard can easily provide that service. I'd be happy to
provide such a wizard.
Arnt