https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6372
--- Comment #1 from Warren Togami <[email protected]> 2010-03-11 02:59:17 UTC --- There are a number of requirements (that are not documented anywhere...) for a new blacklist to be added to spamassassin. But first the blacklist must be measured to be useful in spam detection while also guarding against false positives. Examples: * Bug #6156 PSBL for example had over 2 months of testing in weekly masschecks before it was enabled by default in spamassassin-3.3.0. PSBL's hit rate is a relatively low 10-15% which is normally too small to be worthwhile as a default network test in spamassassin. But PSBL was found to be consistently among the SAFEST blacklists with almost zero false positives. * The Anubis blacklists have been in testing for many months now. They are catching roughly 33% of spam with a typically low false positive rate. 33% is marginally good enough for inclusion in spamassassin, but overlap analysis shows differences between Anubis and the typical top blacklists like Spamhaus XBL, which is a good thing. Anubis being based in Europe uses very different data sources than most other blacklists making it a valuable addition. Anubis is now currently working on establishing a network of public global mirrors in order to become suitable for spamassassin. I have tested Lashback UBL during October 2009. The test is still in the source sandbox. spamassassin/trunk/rulesrc/sandbox/wtogami # UBL testing disabled 20091019 # http://ruleqa.spamassassin.org/20091017-r826198-n/T_RCVD_IN_UBL/detail # Saturday masscheck revealed 7.9% spam and 2.3% ham hit rate #header RCVD_IN_UBL eval:check_rbl('ubl-lastexternal', 'ubl.unsubscore.com') #describe RCVD_IN_UBL Relay listed in UBL http://www.lashback.com/support/UnsubscribeBlacklistSupport.aspx #tflags RCVD_IN_UBL net nopublish Unfortunately the results at that time were abysmally bad. It caught far fewer spam than the other blacklists, while the false positive rate was unacceptably poor. We can certainly test your blacklist again. Do you wish us to enable UBL in our weekly Saturday masschecks? It wont be a rule pushed to any spamassassin clients. It will be a rule in Saturday masschecks where you will have a burst of up to a million queries coming from a small number of servers on the Internet. Anyone else object to me enabling this test for weekly masscheck? -- Configure bugmail: https://issues.apache.org/SpamAssassin/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
