rob mcewen oatinvaluementcom aaron wolfe wrote 24 hours data play first results seemed promising found 300000 hosts connected highest mx issue quit group 960 listed spamhaus zen breakdown onto individual lists 23 hosts listed spamhaus listed rob mcewens ivmsip list note 50 remaining hosts 10 higher lists hit rate normal mail flow im sure quick test perfect remaining 17 hosts may include amount non spam sources small would guess also ran rbl checks end cycle hits 24 hours old amount remainder probably rbls time hit server since removed aaron thoughtsobservations assuming ran dnsbl checks 24 hour period think saying believe 96 also caught zen would probably lower higher ips recent spam dont generally expire lists quickly however contrast typically propagation delay get dnsbls delay vary widely dnsbls ran test fact actually gave zen time catch mentioned ips connected highest mx batch half ips zen didnt catch already rob mcewens ivmsip list thanks plug fear may accidentally paint inaccurate picture ivmsip seems imply half list made ips would caught someone using connected highest mx method know didnt intend imply potential someone interpret way fact others know add much spams lists catches ips connected highest mx method misses example took last 100 ivmsip catches ran zen 88 100 already caught zen 12 left 3 caught widely used respected dnsbls 847921212 spamcop 2006632226 dsblpsbl 2121475133 spamcop mark perkels host karma list shown 12 left three 1 caught perkels host karma list therefore probably ip 12 connected highest mx method would caught caught zen stats show 50 connected highest mx method catches also caught ivmsip additional stats show connected highest mx method catches 8 spams ivmsip catches already zen twelve 9 ips would caught reliable fpsafe dnsbls would likely caught connected highest mx method 9 uniques anyone examinecritique 79137219171 7913722342 79137225194 79137231242 79137233223 79137235210 79137235252 79137237210 21325419426 9 uniques 100 doesnt sound impressive already caught uceprotects level 3 uces fprisky list certainly list fpriskly outright block score high uce even states list probably cause collateral damage innocent users used block email since contrast ivmsip extremely low fprate seeks ever create collateral damage unlike uce3 ips show ivmsip safe outright block score high ultra careful without fear fps course time took type message another 1142 ips added ivmsip ad hoc snapshot suspect uniques get lists time people read post meantime spams send ips use ivmsip blocked final note ivmsip seeks supplemental list focused mostly new series spams purposely skips listing spammers ips circulation x number weeksmonths therefore zen going list many ips ivmsip isnt even trying list ivmsip trying zen replacment instead supplement rob mcewen thu 07 aug 2008 191715 0500 bogus mx blacklist service viable