@philippn no, the Summercamp grew to big for a real community event, so we decided to split and make it two.
The Best Open Source Email & Collaboration Software
Unfortuantely this is not possible. When you want to use a Zarafa supported edition you have to buy a subscription for all users that are created in your Zarafa system.
Zarafa, the leading European provider of open source groupware and collaboration software, is pleased to announce its eighth presence at the CeBIT. The world's largest trade fair, showcasing digital IT and telecommunications solutions, will take place in Hanover, Germany from March 5-9, 2013.