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used in conjunction with the sources of spam may far exceed the average user's capability. For instance, graphic-only spam messages have no text to compare to therefore checking the sender's originating mailserver and included links against various databases of known e-mail abusers enables the prevention of unnecessary or non-personal mail getting through to the end user.
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attachment, with a brief excerpt in the message body, and a description of the tests which resulted in the mail being classified as spam. If the score is lower than the defined settings, by default the information about the passed tests and total score is still added to the email headers and can be
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as one of the most effective spam filters, especially when used in combination with spam databases. While simple text-matching alone may, for most users, be sufficient to correctly classify a majority of incoming mail the complexity involved in the combination of the comparison of words and symbols
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Each test has a label and a description. The label is usually an all upper case identifier separated with underscores, such as "LIMITED_TIME_ONLY", with the description for that label being "Offers a limited time offer". A mail that fails that test (in this case, contains certain variants of the
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can be called for individual emails. Regardless of the method used to perform the learning, SpamAssassin's
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When a mail's total score is higher than the "required_score" setting in SpamAssassin's configuration, the mail is treated as spam and rewritten according to several options. In the default configuration, the content of the mail is appended as a
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test file. If this string is inserted in a RFC 2822 formatted message and passed through the SpamAssassin engine, SpamAssassin will trigger with a weight of 1000.
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showing that SpamAssassin received 69% of the vote for "best Linux-based anti-spam solution."
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E-mail recognized as spam by SpamAssassin, here in the
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containing many very good rules for filtering with SA.
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in ways similar to previously received spam e-mails).
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based on content-matching rules, which also supports
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by Mark
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327:Revision as of 23:00, 22 March 2007
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509:SpamAssassin was created by
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600:Anti-spam techniques
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996:Apache HTTP Server
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699:Bayesian filtering
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209:Next edit →
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1635:Deltacloud
1421:Subversion
1311:OрenOffice
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1136:FreeMarker
1061:CloudStack
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942:Top-level
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487:filtering
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531:2001
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174:talk
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