The Mutt E-Mail Client
  by Michael Elkins <me@cs.hmc.edu>
  version 1.2

  1.  Introduction

  Mutt is a small but very powerful text-based MIME mail client.  Mutt
  is highly configurable, and is well suited to the mail power user with
  advanced features like key bindings, keyboard macros, mail threading,
  regular expression searches and a powerful pattern matching language
  for selecting groups of messages.

  1.1.  Mutt Home Page

  http://www.mutt.org/