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nmail vs NeoMutt: catalog facts
nmail	NeoMutt
Free Free and open source under the MIT and GPL-2.0 licenses.	Free Free and open source under the GPL.
macOS, Linux, Command line	macOS, Linux, Command line
IMAP and SMTP support Searches local cache and server messages	Collects and maintains the Mutt patches that were previously scattered Notmuch tags and IMAP keywords as custom mailbox tags
Does not support multiple email accounts in a single session. Does not provide a threaded view.	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: MIT, GPL-2.0	License: GPL-2.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 21, 2026

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