Quest Collaboration Services does not support Office 365.
Quest Collaboration Services only supports the following:
- Microsoft Exchange Server 2003 Service Pack 2 or later
- Microsoft Exchange Server 2007 Service Pack 1 or later
Note: To use the free/busy synchronization option with Microsoft Exchange Server 2010, Service Pack 1 must be installed along with a configured public folder store. Without Service Pack 1 you will only be able to use the Active Directory and calendar synchronization options with Exchange 2010.
- Microsoft Exchange Server 2010 Service Pack 3 Roll-up 1
- Microsoft Exchange Server 2013 Cumulative Update 1
- Microsoft Exchange Sever 2016
Note: Exchange 2013 & Exchange 2016 only support Active Directory and Calendar synchronization options.