paul jakma pauljalphyraie thu 8 aug 2002 paul jakma wrote unfortunately often spammers provide real return addresses everyone used tmda poor unfortunates would receive millions tmda confirm messages addition hundred thousand undeliverable messages already get httpmessagewallorg concept tmda smtp proxy extreme tmdanet dnsbl distributed checksum various checks regards paul jakma sys admin alphyra pauljalphyraie warning never send email spamdishonest trapdishonest irish linux users group iluglinuxie httpwwwlinuxiemailmanlistinfoilug unsubscription information list maintainer listmasterlinuxie thu 8 aug 2002 194411 0100 ist ilug tmda slashdot ew dijkstra humor