nmh

Unix Mail Handler

nmh (new MH) is a powerful electronic mail handling system. It was originally based on version 6.8.3 of the MH message system developed by the RAND Corporation and the University of California. It is intended to be a (mostly) compatible drop-in replacement for MH. nmh consists of a collection of fairly simple single-purpose programs to send, receive, save, retrieve, and manipulate e-mail messages. Because nmh is a suite rather than a single monolithic program, you may freely intersperse nmh commands with other commands at your shell prompt or write custom scripts that use these commands in flexible ways.