On Wed, 2004-12-08 at 23:44 +0100, Alex van den Bogaerdt wrote:
SPF by itself does not make a distinction between forgeries as a result
of "old-style forwarding" and spam, virus, etc.
Your references to 'old-style' forwarding and 'forgery' will be a lot
more credible when RFC4822 comes out and indicates that forwarding sites
SHOULD NOT behave in the way they've always done by preserving the
reverse-path.
I consider that a prerequisite for any standardisation of SPF; to do it
in the other order is putting the cart before the horse.
--
dwmw2