On Tue, 23 Jul 2002, Miles Davis wrote:
> I don't suppose anybody has come up with a good way of implementing at
> least a limited version of this? Like, if the email did not at some point
> originate from something in host_accept_relay then deny it? What I guess I
> want is something that looks through the recieved lines for a match to one
> of my systems (not that those can't be forged, but I haven't seen that
> yet).
Forged Received: lines have been seen, so I don't think there's any hope
there. The only possibilty I can think of would be something
cryptographic, but I'm not a crypto person, so haven't any concrete
ideas.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.