How To: Exim4 Virtual Host on Debian Etch

Well, since I reinstalled a Debian, I decided to make an article on Exim4, as a complement to Postfix and Virtual Host.
Exim4 is the default MTA (Mail Transport Agent) shipped with Debian. It offers really ecellent macros which help a lot in configuring a wide system by automatizing task the administrator would have to [...]