Looks like IBM is going aggressively up against the Outlook/Exchange juggernaut. Several months ago, they made Domino, their mail server, free for any business who buys the licenses for the mail client, Notes. Now they're making Notes available for Linux. The Notes/Domino combination is more than just an email system--it's a complete database system, including calendaring, team rooms, private intranet features, addressing, and much more. While Notes is a lot different, with a fair learning curve, my clients who use it absolutely love it.
05. Email Servers
Chapter 5. Setting up an E-mail server
Names of open source projects are suddenly getting ridiculous. Two new names were just unveiled in the Open Source world: Zimbra, and Joomla. While the names may be silly and potentially off-putting, the projects themselves are compelling.
Novell is sponsoring development of a new email/calendar server called Hula. This promises to be an Exchange killer, providing standards-based calendar sharing and storage using WebCal to share calendars and free/busy information. It's also a complete SMTP/IMAP/POP server with a built-in web interface, vacation messages, and eventually the ability to do server-side sorting and spam and virus filtering.
Frank Neugebauer has written a step-by-step set of instructions to install OpenExchange in Mandrake Linux. OpenExchange is a groupware server providing similar functionality to Microsoft Exchange, only with many more features.
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