If a sender wants to rate-limit its mail, why can't it just do so?
sender -> isp -> exploder -> millions of people
The ISP no longer has any control over who receives a message after it has
been relayed to its recipients, unless there is some kind of call-back.
Ah, the mailing list scenario. This still strikes me as a solution in
search of a problem, since this exact scenario has been possible for 20
years and I can't ever remember it being an abuse problem.
As I said in another message, revocation would be an ideal tool for
spammers to use to pretend that they weren't responsible for their spam.
That's yet another reason not to like it.
John Levine, johnl(_at_)iecc(_dot_)com, Primary Perpetrator of "The Internet
Information Superhighwayman wanna-be, http://iecc.com/johnl, Mayor
"I dropped the toothpaste", said Tom, crestfallenly.