mu4e does not do ¶There are a number of things that mu4e does not do, by design:
mu/mu4e do not get your e-mail messages from
a mail server. Nor does it sync-back any changes. Those tasks are delegated to
other tools, such as offlineimap,
mbsync or
fetchmail; As long as the messages end up in a
maildir, mu4e and mu are happy to deal with them.
mu4e also does not implement sending of messages; instead, it depends on
(smtpmail)Top, which is part of Emacs. In addition, mu4e piggybacks on
Gnus’ message editor.
Thus, many of the things an e-mail client traditionally needs to do, are
delegated to other tools. This leaves mu4e to concentrate on what it does
best: quickly finding the mails you are looking for, and handle them as
efficiently as possible.