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NeoMuttS-nail
Free

Free and open source under the GPL.

 Free

Free software distributed under multiple BSD, ISC, HPND, and RSA-MD licenses.

macOS, Linux, Command line Command line
  • Collects and maintains the Mutt patches that were previously scattered
  • Notmuch tags and IMAP keywords as custom mailbox tags
  • Supports MIME email
  • Provides command-line email sending and reading
  • Terminal only, with a configuration file that must be written before it is useful
  • Mutt's keybindings and terminology take real time to learn
  • Requires a Unix-like environment
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License: BSD-2-Clause AND BSD-3-Clause AND BSD-4-Clause AND ISC AND HPND-sell-variant AND RSA-MD
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked October 8, 2026

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