"This article explains how to configure sendmail and
fetchmail on your local computer connected to the internet via a
PPP link. Such a configuration allows you to use every Unix
mail client (not only Netscape). You can send and fetch your
messages each time you establish a PPP connection."
"In order to manage properly mail on your linux box, you have to
configure a Mail Transfer Agent (MTA in short). The most popular
(and older) is certainly sendmail but there are others such as
qmail which are faster and simpler to configure, or exim which is
included in standard Debian configurations. We shall stick to
sendmail here and use a configuration kit from Berkley University
by Eric Allman."
"To retreive your mail stored on the server of your Internet
Service Provider (ISP in short), it will also be necessary to
configure fetchmail in order to feed sendmail with the content of
your mailboxes. fetchmail is for mail retrieval via pop3 or imap.
You can also use uucp but that is a more exotic case not covered by