[e2e] Fwd: Camel's nose in the tent

[David P. Reed]

If you had valid end-to-end authentication in SMTP (PGP, for example), then 
end-to-end solutions for spam would work - the recipient would know where 
messages came from and could disregard those that didn't come from people 
they know.  They could also identify where messages that they didn't 
recognize came from.

Spam would die rapidly if no one read it.