Not to check our e-mails regularly has become a real exception. E-mail applications are probably the most important applications we use today and since we rely so strongly on these applications it is vital to have stable and flexible software. Zarafa offers an open source groupware combining the usability of Outlook with the stability and flexibility of a Linux server. Zarafa offers everything a groupware must offer and beyond. Zarafa can communicate natively with Microsoft Outlook and synchronize with most smart phones available on the market today.