1. Outlook calendar will not sync.
2. Latest Zarafa Client by Zarafacheck.
3. All calendar sync again.

Microsoft updates, it may happen that shared calendars no longer be synchronized.
With Zarafacheck it is now possible over a large area to distribute the latest Zarafa Client.
This makes no customer site visits are no longer necessary.
After installing the neusetn Zarafa client by the customer, all calendars are synchronized again usually. This saves time and money!