Compare software

nmail vs Mutt: catalog facts
nmail	Mutt
Free Free and open source under the MIT and GPL-2.0 licenses.	Free Free and open source.
macOS, Linux, Command line	macOS, Linux, Command line
IMAP and SMTP support Searches local cache and server messages	Keyboard-driven and fast Works well over SSH
Does not support multiple email accounts in a single session. Does not provide a threaded view.	Steep learning curve No graphical interface
Downloadable app	Downloadable app
Open source	Open source
License: MIT, GPL-2.0	License not stated
Not stated if an account is needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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