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Mutt vs mblaze: catalog facts
Mutt	mblaze
Free Free and open source.	Free Free, with the source code published on GitHub.
macOS, Linux, Command line	macOS, Linux, Command line
Keyboard-driven and fast Works well over SSH	Small composable commands that work in shell pipelines Works directly on standard Maildir folders
Steep learning curve No graphical interface	No graphical or full-screen interface Needs a separate program to fetch and send mail
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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