some analysis revealed that spf/sender id technique aren't really effective.
a statistics on spf done by ciphertrust at: http://www.ciphertrust.com/spf_stats and this article tells us that even spammers uses spf too: http://www.infoworld.com/article/04/08/31/HNspammerstudy_1.html i have read yakov shafranovich's article about sender id a while ago. the part 1 of the article here: http://www.circleid.com/article/730_0_1_0_C/ and the part 2 here: http://www.circleid.com/article/732_0_1_0_C/ cheers :-) -- Philippine Linux Users' Group (PLUG) Mailing List [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) Official Website: http://plug.linux.org.ph Searchable Archives: http://marc.free.net.ph . To leave, go to http://lists.q-linux.com/mailman/listinfo/plug . Are you a Linux newbie? To join the newbie list, go to http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie