Given the enormous amounts of e-mail many people gather, and the importance of
e-mail message in our work-flows, it's essential to quickly deal with all that
mail - in particular, to instantly find that one important e-mail you need
right now.

mu is a tool for dealing with e-mail messages stored in the Maildir-format. mu
main purpose is to help you to quickly find the messages you need; in addition,
it allows you to quickly to view messages, extract attachments, create new
maildirs, ...
See the mu cheatsheet for some examples.

Searching works by first indexing your messages into a Xapian-database. After
that, you can quickly find message using a powerful query language.