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SpamAssassin is a mail filter to identify spam. Using its rule base, it uses a wide range of heuristic tests on mail headers and body text to identify "spam", also known as unsolicited commercial email.
51 lines
2.0 KiB
Plaintext
51 lines
2.0 KiB
Plaintext
SpamAssassin is a mail filter to identify spam.
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Using its rule base, it uses a wide range of heuristic tests on
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mail headers and body text to identify "spam", also known as
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unsolicited commercial email.
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The spam-identification tactics used include:
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header analysis:
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spammers use a number of tricks to mask their
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identities, fool you into thinking they've sent a
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valid mail, or fool you into thinking you must have
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subscribed at some stage. SpamAssassin tries to
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spot these.
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text analysis:
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again, spam mails often have a characteristic style
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(to put it politely), and some characteristic
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disclaimers and CYA text. SpamAssassin can spot
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these, too.
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blacklists:
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SpamAssassin supports many useful existing blacklists,
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such as mail-abuse.org, ordb.org or others.
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Razor:
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Vipul's Razor is a collaborative spam-tracking
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database, which works by taking a signature of spam
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messages. Since spam typically operates by sending
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an identical message to hundreds of people, Razor
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short-circuits this by allowing the first person
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to receive a spam to add it to the database -- at
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which point everyone else will automatically block
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it.
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Once identified, the mail can then be optionally tagged as spam for
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later filtering using the user's own mail user-agent application.
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SpamAssassin requires very little configuration; you do not need
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to continually update it with details of your mail accounts, mailing
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list memberships, etc. It accomplishes filtering without this
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knowledge, as much as possible.
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Read ${PREFIX}/share/doc/SpamAssassin/README
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for further installation instructions.
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Or if you are in a hurry you can read:
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${PREFIX}/share/doc/SpamAssassin/OpenBSD-SpamAssassin-mini-howto.html
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WWW: ${HOMEPAGE}
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