May 26, 2018

Indexing and searching in Maildir, MH, or mbox folders

Mairix is a program for indexing and searching email messages stored in Maildir, MH or mbox folders.


  • Indexing is fast. It runs incrementally on new messages - any particular message only gets scanned once in the lifetime of the index file.
  • The search mode populates a “virtual” folder with symlinks* which point to the real messages. This folder can be opened as usual in your mail program.
  • The search mode is very fast.
  • Indexing and searching works on the basis of words. The index file tabulates which words occur in which parts particular headers + body of which messages.

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