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muNeoMutt
Free

Free to download, with source code on GitHub.

 Free

Free and open source under the GPL.

Linux, Command line macOS, Linux, Command line
  • Fast indexing and detailed search of Maildir mail
  • mu4e gives a full email client inside Emacs
  • Collects and maintains the Mutt patches that were previously scattered
  • Notmuch tags and IMAP keywords as custom mailbox tags
  • Works only with Maildir storage; mail must be fetched separately
  • The client side requires Emacs
  • Terminal only, with a configuration file that must be written before it is useful
  • Mutt's keybindings and terminology take real time to learn
Downloadable app Downloadable app
Open source Open source
License not stated License: GPL-2.0
No account needed No account needed
Works offline Works offline

Checked September 23, 2026

Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.