Zarafa is the leading European provider of open source groupware and collaboration software. The company is headquartered in Delft, the Netherlands. Zarafa’s offices in Stuttgart, Hannover and Belo Horizonte (Brazil) provide local sales and support to more than 300 partners and thousands of customers worldwide. The core product is the Zarafa Collaboration Platform (ZCP), the European open and compatible groupware platform that can be used as a drop-in Microsoft Exchange replacement for email, calendaring, collaboration and tasks. Zarafa is acclaimed for its unrivalled expertise in calendar and mobile compatibility.