or should they return UNKNOWN in both cases?
I believe both should be UNKNOWN.
We use weight-based test aggregators, and embedding the NXDOMAIN test
in the SPF test inappropriately increases the weight of a message
(since it will already be assigned points based on an independent
NXDOMAIN test).
While some will say, "You'd be rejecting the message anyway, so who
cares," duplicate tests, and resultant reporting errors, are far from
desirable.
--Sandy
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Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: sandy(_at_)cypressintegrated(_dot_)com
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