text_combined: marc perkel pvosgprjunkemailfiltercom heres something im works really well could implemented sa done using hostkarma list im hoping successful someone else make even better list mine trick effective whitelisting used blacklisting call yellow listing ip based lookup rather host name based lookup using forward confirmed rdns forward confirmed rdns cant spoofed look rdns get host name look host name verify points back ip forward confirmed look host name hostkarma list dig dxv05wellsfargocomhostkarmajunkemailfiltercom returns 127001 indicating name whitelisted point need tests message ham reason adding sa data dns correct 100 accurate matches eliminates false positives reduces system load skipping tests especially good whitelisting servers send nothing good email stable dont change ip addresses avoid detection like spammers also works well blacklists call yellow lists names like yahoocom hotmailcom yellow listed means mixed spam source sending ip address information spam yellow listed host name ip address skips ip based tests goes content testing eliminates servers accidentally either white black listed another thing host name whitelisted lookup whitelist ip address automatically ip based lookups see information wells fargo bank server sends email detect white hostname ip address added white list people reading white list see ip allow servers ip based white lists accurate getting point im works im trying get others excited know better want smart people think improve marc perkel salessupport pvosgprjunkemailfiltercom httpwwwjunkemailfiltercom junk email filter dot com 4159923401 thu 07 aug 2008 211620 0800 using name based hostkarma lookups spam assassin