maildir-utils 0.4-3 (powerpc binary) in ubuntu lucid

 mu is a set of utilities to deal with Maildirs, specifically,
 indexing and searching.
  - mu-index - recursively scans a collection of email messages, and
 stores information found in a database.
  - mu-find - searches for messages based on some search criteria.
  - mu-msginfo - gives information (such as subject, sender, message body) for a
   certain message file
  - mu-mkmdir - creates a new Maildir
 .
 mu uses libgmime2 to parse the message, and SQLite and Xapian to store the
 message data.