mu ☆
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Description:
Tool for searching e-mail messages stored in the maildir-format
Type: Formula  |  Latest Version: 1.12.13@0  |  Tracked Since: Dec 20, 2025
Links: Homepage  |  formulae.brew.sh
Category: Productivity
Tags: email search maildir indexing cli
Install: brew install mu
About:
mu is a command-line utility and accompanying Xapian-based database designed for indexing and searching email messages stored in maildir-format directories. It enables users to perform rapid, complex queries on large email archives, supporting advanced search syntax for content, sender, date, and attachments. The tool integrates with Emacs via mu4e, providing a powerful email client workflow for power users.
Key Features:
  • Fast indexing and searching of maildir-based email archives
  • Advanced query syntax for precise email discovery
  • Seamless integration with Emacs via mu4e
  • Open-source and extensible via command-line interface
Use Cases:
  • Indexing and searching large personal or professional email archives
  • Integrating email search into an Emacs-based development workflow
  • Automating email processing and filtering via command-line scripts
Alternatives:
  • notmuch – Similar mail indexing and search tool; notmuch is often noted for its tagging-based workflow and integration with various mail clients.
  • mairix – An older mail indexing tool; mairix is simpler but lacks the advanced features and active development of mu.
Version History
Detected Version Rev Change Commit
Dec 20, 2025 11:06am 1.12.13 0 VERSION_BUMP b0cefa05
Sep 16, 2025 4:41am 0 VERSION_BUMP 70adfef1
Sep 13, 2025 2:46pm 0 VERSION_BUMP 6c9263c9
Dec 17, 2024 11:09pm 0 VERSION_BUMP 232465c2
Oct 27, 2024 10:33pm 0 VERSION_BUMP da61845d
Oct 27, 2024 9:39pm 0 VERSION_BUMP a6c111e7
Sep 14, 2024 7:55am 0 VERSION_BUMP da850892
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