Apache SpamAssassin: Difference between revisions

Revision as of 05:18, 28 April 2019

Revision as of 16:36, 28 April 2019

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Each test has a score value that will be assigned to a message if it matches the test's criteria. The scores can be positive or negative, with positive values indicating "spam" and negative "ham" (non-spam messages). A message is matched against all tests and Apache SpamAssassin combines the results into a global score which is assigned to the message. The higher the score, the higher the probability that the message is spam.

The result is a "probability" and can be incorrect. A method of communicating with Spam Assassin, if it exists, is very hard to find.

Apache SpamAssassin has an internal (configurable) score threshold to classify a message as spam. Usually a message will only be considered as spam if it matches multiple criteria; matching just a single test will not usually be enough to reach the threshold.