spam-catcher using a collaborative filtering network

 Pyzor is a collaborative, networked system to detect and block spam
 using identifying digests of messages.
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 Package contains both client and server.
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 The client can check if an email is a known spam against a pyzor server
 or report new spam digests to that server.
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 The server holds the digests database, and handle the client requests.
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 Pyzor is a reimplementation of Razor in Python.