Already using SpamAssassin?
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If you came here from http://spamassassin.apache.org/, go to StartUsing!
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Tips for making SpamAssassin work better for you....
Losing emails?
FalsePositives: Is your Ham being matched incorrectly as Spam?
AutoWhitelist: The SpamAssassin AWL - historical score-averaging for each sender
Spam getting through?
UsingNetworkTests: Turning on the network rules to improve accuracy
BayesInSpamAssassin: Training the Bayesian learner
WritingRules: How to write and test new rules
Third party "drop-in" CustomRulesets and CustomPlugins
TrustPath: Fixing the "ALL_TRUSTED" problem.
RuleUpdates: Using sa-update to publish and/or receive rule updates.
General info:
UpgradingVersion: Upgrading is quick and easy
FrequentlyAskedQuestions: General questions, not errors (see FixingErrors for that)
FixingErrors: Things that can go wrong and how to fix them
Performance Tips:
FasterPerformance: DNS resolution, Using Spamd, Other good tips.
ChooseYourRules: Everyone's Spam is different