Slashdot picked up a Nature article
http://www.nature.com/nsu/040216/040216-12.htmlabout Personal Email Networks: An Effective Anti-Spam Tool
http://www.arxiv.org/abs/cond-mat/0402143in which about 100% of incoming mail is correctly sorted into
spam, not spam, and don't know categories by simply constructing
a social e-mail network from the To: From: and Cc: headers in
your mailbox.
-- rec --