Binary package “spamoracle” in ubuntu precise
A statistical analysis spam filter based on Bayes' formula
SpamOracle, a.k.a. "Saint Peter", is a tool to help detect and filter away
"spam" (unsolicited commercial e-mail). It proceeds by statistical analysis
of the words that appear in the e-mail, comparing the frequencies of words
with those found in a user-provided corpus of known spam and known legitimate
e-mail. The classification algorithm is based on Bayes' formula, and is
described in Paul Graham's paper, A plan for spam.
This program is designed to work in conjunction with procmail. The result of
the analysis is output as an additional message header X-Spam:, followed by
yes, no or unknown, plus additional details. A procmail rule can then test
this X-Spam: header and deliver the e-mail to the appropriate mailbox.