At 02:29 PM 9/10/2004 -0400, you wrote:
My point was the semantic difference is useless for anti-spam unless
you know that all "not known" implies a spammer domain.
I think you missed Meng's point:
not known <> known not
He's implying that there was a check for the domain against a system
that lists the good guys, like cloudmark. Therefore it is 'known not to
be a spammer domain'.
I got his point. Respectfully, you apparently still did not get mine. Please
go back to my previous post in this thread.
My basic point is that the inverse result does not imply a spammer, so the
result is not that useful. Cloudmark can not PASS most non-spam domains.