Stockholm University needed a state-of-the-art collaboration and communications server for its 5,000 staff to replace eight different email systems. Its previous solutions were expensive and time consuming to operate. The university moved to Microsoft Exchange Server 2010 running on HP hardware. It wanted to take advantage of its greater reliability and new features such as support for Microsoft Outlook, which would boost staff productivity through calendar sharing and online bookings. The deployment took place seamlessly over one weekend, after which employees were able to work effectively immediately. The university is now cutting operating costs by €80,000 (U.S.,000) compared to the previous systems, while its environmental sustainability targets have been met by reducing space and energy consumption in the data center.