The Linux Mail User HOWTO
Copyright © 2000 Eric S. Raymond
This document is an introduction to the world of electronic
mail
(email) under Linux. It
focuses on user-level issues and typical configurations for Linux home
and small-business machines connected to the net via an ISP.
You need to read this if you plan to communicate locally or to
remote sites via electronic mail. You probably do
not need to read this document if don't exchange
electronic mail with other users on your system or with other
sites.
For information on configuring and administering mail, see the
Mail Administrator HOWTO.