r hettinga rahshipwrightcom begin forwarded text date sun 11 aug 2002 130248 0100 usualespacenet fearghas mckay subject fwd camramspam another framework hashcash related framework replyto usual people list sender begin forwarded text mailinglist contact camramspamhelpcamramorg run ezmlm xnoarchive yes replyto camramspamcamramorg deliveredto mailing list camramspamcamramorg deliveredto moderator camramspamcamramorg date fri 2 aug 2002 004253 0100 adam back camram cc adam back subject camramspam another framework hashcash related framework framework using hashcash like proof work function way frustrate junk mailers paper curbing junk email via secure classification e gabber jakobsson matias mayer bell fc98 online copy httpciteseernjneccom27735html look view download section top right availabile least pdf ps formats framework propose proxies etc looks lot like current camram architecture proof work get white list use target revokable email addresses basically identical lwpa concept implement white list resulting framework essentially identical proposed recent message subject target revokable email addresses postagefree tokens idea including postage freetoken email address mirrors done lwpa makes system exhibit smoother migration nonusers eg use varied sender addresses still work forward email address someone else still work etc software architecture diagrams suggestions installing proxies corporate gateway gatekeeper call adam unsubscribe email camramspamunsubscribecamramorg additional commands email camramspamhelpcamramorg end forwarded text end forwarded text r hettinga internet bearer underwriting corporation 44 farquhar street boston 02131 usa however may deserve respect usefulness antiquity predicting end world found agreeable experience edward gibbon decline fall roman empire httpxentcommailmanlistinfofork sun 11 aug 2002 133631 0400 fwd camramspam another framework hashcash related framework