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NeoMutt vs MailMate: catalog facts
NeoMutt	MailMate
Free Free and open source under the GPL.	Freemium Uses a license key model, and the developer describes a Free Mode.
macOS, Linux, Command line	macOS
Collects and maintains the Mutt patches that were previously scattered Notmuch tags and IMAP keywords as custom mailbox tags	Extensive keyboard control Markdown email composition
Terminal only, with a configuration file that must be written before it is useful Mutt's keybindings and terminology take real time to learn	macOS only Current 2.0 version is still a beta
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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