1. A set of electronic mail handling programs. This is the nmh mail user agent (reader/sender), a command line based mail reader that is powerful and extensible. nmh is an excellent choice for people who receive and process a lot of mail. Unlike most mail user agents, nmh is not a single program, rather it is a set of programs that are run from the shell. This allows the user to utilize the full power of the Unix shell in coordination with nmh. Various front-ends are available, such as mh-e (an emacs mode), xmh, and exmh (X11 clients). nmh was originally based on MH version 6.8.3, and is intended to be a (mostly) compatible drop-in replacement for MH. From Debian 3.0r0 APT