Anti-spam SMTP mods

[Charles Steinkuehler]

Has anyone on-list implemeted SPF (http://spf.pobox.com/) or one of the 
other 2 methods currently being proposed to close the loopholes in SMTP 
that allow forging of the envelop sender/from: header?

I'm thinking of setting this up on my personal mail server, but am 
wondering if it will be worth the hassle.

-- 
Charles Steinkuehler
charles at steinkuehler.net