False Positive Rate

• SpamAssassin is 98.5% accurate on our test corpora, with default settings

  • 0.6% false positives
  • 91% of all spam caught correctly
  • with network tests on, spam hit-rate probably increases to about 93-95%

• Highest rate available among present tools

• Tunable by the user -- reduce FPs by increasing the threshold, ditto vice-versa