mu4e (mu-for-emacs) is an e-mail client for GNU-Emacs version 24, built on top of the mu1 e-mail search engine. mu4e is optimized for fast handling of large amounts of e-mail.
Some of mu4e's highlights: Fully search-based: there are no folders, only queries. Fully documented, with example configurations User-interface optimized for speed, with quick key strokes for common actions Support for non-English languages (so "angstrom" will match "Angstrm") Asynchronous: heavy actions don't block emacs3 Support for crypto Address auto-completion based on the contacts in your messages Extendable with your own snippets of elisp