This software bundle includes a variety of tools designed to manage and manipulate maildirs, which are commonly used email storage formats. These utilities can help users organize and maintain their email systems more effectively.
The first tool in the mu set is called mu-index. It fills a database with all of the information about your emails making them easily searchable by the next tool in set, mu-find. Through a dedicated query language, mu-find enables you to easily search for particular emails without having to go through loads of other irrelevant ones. You can search for emails from specific people, emails with attachments or emails sent during a certain period of time.
The syntax used to express these searches may seem a little cryptic at first but once you get the hang of it, it's pretty straightforward. If you're feeling a bit lost, the mu documentation has a detailed section discussing syntax and usage, alongside numerous examples. Additionally, periodic updates of the database can be done quickly by running mu-index again.
The beauty of mu is its compatibility with your existing email program, such as mutt. You do not have to switch to a new one to use mu. However, to use mu, it's important to ensure that your emails are stored in a set of maildirs. mu is free software that was released under GPLv3, and it runs on Unix/Linux-based systems, harnessing the power of the SQLite database and Xapian text indexing engine.
For the most practical introduction to mu, there's a short HOWTO that you might find helpful. For technical discussions and various detailed aspects of designing and implementing mu, the author's blog is a great resource. In conclusion, mu is a lifesaving set of tools for those who believe that email is at the core of their work. It's a great investment of time and energy that will pay off in efficiency and productivity.
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