> SPF is rather useless. Spammers can publish SPF records.

Which is why the OP specifically stated:

>> What does it mean? An SPF pass, on its own, means little; an RHSWL
>> match, on its own, means little; but together, they mean a lot.

Was it asking too much of you to READ the message posted before you
commented on it, especially since it seems to complement your own idea quite
Dave Pooser
Cat-Herder-in-Chief, Pooserville.com
"I've *met* humanity. I worked retail."
--Diesel Sweeties