Hmmm, I have to say I'm really not that interested in the reputation
of my ISP... I'll send mail from my own MTAs, and their reputation
will hopefully be based solely on the mail that my systems generate...
My gut feeling is that if you're forced to use your ISPs MTA against
your will (which boils down to being a residential cable/DSL customer)
then your ISP's reputation is going to be pretty low anyway (simply
becuase of the nature of virus infected and compromised machines that
exist on a typical residential broadband network).
Surely MARID makes more sense in a world where people (again)
configure their MTAs to deliver direct, rather than smarthosting off
their ISPs...?
-roy