Mairix is a tool for indexing and searching words in locally stored mail. It was written by Richard Curnow and is licensed under the GPL.
mairix.el is an interface to the mairix search
engine. It allows you to call mairix with a search term, easily
create searches based on the currently displayed mail, save
regularly used searches in your .emacs for future use and lets you call
mairix for updating the database.
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover texts being “A GNU Manual”, and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled “GNU Free Documentation License”.(a) The FSF's Back-Cover Text is: “You have the freedom to copy and modify this GNU manual. Buying copies from the FSF supports it in developing GNU and promoting software freedom.”