Project Summary
Mutt is a small but very powerful text-based mail client for Unix operating systems.
Though written from scratch, Mutt's initial interface was based largely on the ELM mail client. To a large extent, Mutt is still very ELM-like in presentation of information in menus (and in fact, ELM users will find it quite painless to switch as the default key bindings are identical). As development progressed, features found in other popular clients such as PINE and MUSH have been added, the result being a hybrid, or "mutt."
In a Nutshell, mutt...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 29 years of effort (COCOMO model)
starting with its first commit in June, 1998
ending with its most recent commit 3 days ago
Quick Reference
GNU General Public License v2.0 or later
Permitted
Commercial Use
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Required
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These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryDec 14 2025 — Jan 13 2026
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12 Month SummaryJan 13 2025 — Jan 13 2026
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