Open-Xchange Offers Lifeline to Zimbra Users

Tarrytown, NY, February 25, 2008 — Open-Xchange Inc., the market-leading independent open source alternative to Microsoft Exchange, today announced a special program for Zimbra customers concerns about their investment in light of the pending Microsoft/Yahoo deal.

Zimbra customers can fax the Open-Xchange Competitive Upgrade form (http://www.open-xchange.com/index.php?id=860) to Open-Xchange together with a copy of their last two years groupware invoice and Open-Xchange will offer a two year subscription to an equivalent Open-Xchange product for 50% of the cost of their invoice.

“This is a disturbing time for many Zimbra users,” said Rafael Laguna, CEO, Open-Xchange. “Along with this program, we also introduced our Community Edition earlier this month – to make sure that any investment in Open-Xchange will be protected.”

Open-Xchange Community Edition offers email, calendar, contacts, tasks and document sharing providing companies with all the tools needed to facilitate communication and efficient teamwork. Customers and/or partners can improve communication and teamwork with simple, intuitive tools and intelligent features, such as smart links between calendar appointments, task lists, contacts, documents, bookmarks, knowledge articles and AJAX-based mashup capabilities by UWA (Netvibes Universal Widget API)

Availability of maintenance, support and Outlook connectivity
Open-Xchange provides additional services for Open-Xchange Community Edition such as maintenance via an automated updater and connectivity for Microsoft Outlook 2003 and 2007 clients. Open-Xchange Server Edition starts at US$ 898 / € 691 and is available today at the Open-Xchange Online Shop (www.open-xchange.com/shop) and through qualified resellers. Governmental, non-profit organizations, educational organizations and users of competitive products are eligible for discounts. All prices exclude VAT.

About Open-Xchange Inc.
Open-Xchange Inc. is the innovator of scalable and integrated open source email and collaboration solutions for enterprises, academic institutions, and government authorities. Open-Xchange Hosting Edition enables web-hosting companies to provide an easy-to-use and feature-rich application delivered as Software as a Service (SaaS). Internet service providers (ISPs), telcos and hosting providers, led by 1&1 Internet, deliver advanced email and groupware features through Open-Xchange Hosting Edition to millions of users. Open-Xchange Inc. is a privately held company headquartered in Tarrytown, NY, with research, development, and operations in Olpe and Nuremberg, Germany. For more information, please visit www.open-xchange.com.