Open-Xchange Express Edition

<p><a href="http://www.open-xchange.com/header/products/openxchange_express_edition.html">Open-Xchange Express Edition</a> is a cut-down version of <a href="http://www.open-xchange.com/header/products/openxchange_server_5.html">Open-Xchange Server</a>, the company's alternative to <a href="http://reviews.zdnet.co.uk/software/enterpriseapplications/0,1000001813,39281578,00.htm">Microsoft Exchange</a>. Intended for smaller businesses, this <a href="http://reviews.zdnet.co.uk/software/os/0,1000001098,39288016,00.htm">Ubuntu</a>-based system offers collaboration via shared folders, email protected by antivirus and anti-spam, plus backup and recovery. </p>