is an open source e-mail and groupware server that runs on Linux, licensed under the Scalix Public License (SPL)[1]. It was previously proprietary software. It was based on HP OpenMail, which was licensed from Hewlett Packard. It provides e-mail, calendars and other collaborative software, which are standard in groupware. It can be accessed from many different clients, most notably Microsoft Outlook, Novell Evolution (formerly Ximian) and Scalix Web Access, an AJAX-based web email and calendaring client that combines the functionality of desktop email with the ease-of-use of a browser.     more detail>>