This is an implementation of a fast and smart algorithm for threading mail messages, as described by Jamie Zawinski at http://www.jwz.org/doc/threading.html. Don't send problems with this code to him, though; instead contact the author at amk@amk.ca.

This code is under a BSD-style license; see the LICENSE file for the full text.

The master repository is available at http://bitbucket.org/akuchling/jwzthreading.

--amk