EMailFilter A customizable e-mail content filter written in Python
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filter daemon block email filter filter mail block spam

EMailFilter Description

A customizable e-mail content filter written in Python EMailFilter is a free and open source e-mail content filter developed using Python. EMailFilter consists of the following Python modules and shell scripts:· EMAILFILTER.PY: the core filter logic; it allows you to add as many Python filtering modules as you want, and will give each filtering module a chance to examine each e-mail message and (possibly) add 'X-' headers to record its findings.· EMAILFILTERD.PY: the preferred mode of operation for EMailFilter; it wraps EMAILFILTER.PY in a daemon that listens on a user-specific port (currently the port number is 5590 + the user id) and processes each e-mail message sent to it through that port.· EMAILFILTERC.PY: a command-line client program that takes its standard input, sends it through a socket to the daemon on the appropriate port, receives the processed data back, and writes it to standard output. This is not the preferred method of talking to the daemon; see the emailfilterc shell script below.· EMAILFILTERDEFS.PY: common definitions for all the above modules.· EMAILFILTERD: a shell script to invoke the daemon.· EMAILFILTERC: a shell script to invoke the client; it can use emailfilterc.py above if necessary, but this is slow because it requires a new instance of the Python interpreter to be loaded for each e-mail message (the message comes in on standard input and the processed message is written to standard output). Most e-mail clients can be set up to invoke any desired filter program, sending it messages on standard input and receiving processed messages on standard output; thus, to use EMailFilter, simply tell your e-mail client to invoke emailfilterc -c as the filter program (you can leave out the -c, but as above, filtering will be significantly slower). What's New in This Release: · Changed client and request handler to use refactored socket I/O functionality in version 0.5 of ``plib``. · Added the ``-n`` and ``-t`` options to the client scrip ``emailfilterc`` to enable use of netcat (it has to be two options because netcat goes by two command names, ``nc`` and ``netcat``, so there's an option for each).

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