@morrow without logs this will be hard to track down. can you ask your administrator to open up a support case for this?
Zarafa's Product Manager Milo Oostergo was invited for the yearly FUDCon (Fedora User and Developer Conference) EMEA event in Zurich/Switzerland.
This year's FUDCon event was held together with the open source FrOSCamp event on 17 -19 September. During these three days many interesting speeches were held about upcoming Fedora releases and future development. It was very cool to see experience that many community members are already using Zarafa as their preferred groupware solution and give feedback on the Zarafa roadmap and architecture.
On Saturday Milo held a speech about Zarafa which was very well received. There also were a lot of interesting discussions about the integrations with Zarafa and highly scalable Zarafa setups.