--- layout: default permalink: /code/mu/mu4e.html --- Starting with version 0.9.8, [mu](http://www.djcbsoftware.nl/code/mu) provides an emacs-based e-mail client which uses `mu` as its back-end: *mu4e*. Through `mu`, `mu4e` sits on top of your Maildir (which you update with e.g. [`offlineimap`](http://offlineimap.org/), [`mbsync`](http://isync.sourceforge.net) or [`fetchmail`](http://www.fetchmail.info/)). `mu4e` is designed to enable super-efficient handling of e-mail; searching, reading, replying, moving, deleting. The overall 'feel' is a bit of a mix of [`dired`](http://www.gnu.org/software/emacs/manual/html_node/emacs/Dired.html) and [Wanderlust](http://www.gohome.org/wl/). Features include: - Fully search-based: there are no folders, only queries - UI optimized for speed with quick key strokes for common actions - Fully documented, with example configurations - Asynchronous: heavy actions never block emacs - Write rich-text e-mails using /org-mode/ (experimental) - Address auto-completion based on your messages -- no need for managing address books - Extendable in many places using custom actions For all the details, please see the [manual](mu4e/), or check the screenshots below. `mu4e` is part of the normal [mu source package](http://code.google.com/p/mu0/downloads/list) and also [available on Github](https://github.com/djcb/mu). # Screenshots ## The main view ## The headers view ## The message view ## The message/headers split view (0.9.8.4) The message/headers split view, and speedbar support. ## View message as pdf (0.9.8.4) ## License & Copyright *mu4e* was designed and implemented by Dirk-Jan C. Binnema, and is Free Software, licensed under the GNU GPLv3