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Cone vs Mutt: catalog facts
Cone	Mutt
Free Free open-source software.	Free Free and open source.
Linux, Command line	macOS, Linux, Command line
Multiple IMAP and POP3 accounts plus local maildirs Built-in editor with spell checking	Keyboard-driven and fast Works well over SSH
Text-only interface Images and PDFs need external viewer programs	Steep learning curve No graphical interface
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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