"This document describes how to set up the Zimbra Collaboration
Suite (ZCS) Open Source Edition v5.0 on Debian Etch. The resulting
system provides a full featured collaboration-suite with many
features that I can't list all here--please have a look at the
feature list. It also comes with a nice (themeable) AJAX web
interface for administration and user access.
"This howto is a practical guide without any warranty--it
doesn't cover the theoretical backgrounds. There are many ways to
set up such a system - this is the way I chose..."