Rmail

At A Glance  

  Package Name: Rmail
  Latest Version:  Emacs 18.58
  Developer/Author: Free Software Foundation
  Availability: FTP prep.ai.mit.edu
  Sources: UNIX
  Platforms: All platforms that emacs supports
  Support: gnu.emacs
  Folder Format: BABYL
  Notable Features: Comes standards with emacs distribution.
                    Implemented entirely in elisp. 

• From: "Emacs Documentation"

  Rmail is an Emacs subsystem for reading and disposing of mail. Rmail stores mail messages in Rmail files in BABYL format (originally used under the ITS operating system), although it can incorporate new mail from MMDF and Unix format files, or mixed-format files. Reading the messages in an Rmail file is done in a special major mode, Rmail mode, which redefines most letters to run commands for managing mail.

  Rmail can do the standard things such as displaying, deleting, filing, or replying to messages. Replying uses another Emacs subsystem, Mail mode. Messages can be saved in either BABYL or Unix format. Rmail maintains per-message attributes and user-defined labels. Rmail can burst message digests.