They have a mix of Macs and Windows PCs, with a Windows 2012 Server.) The reason for upgrading the user to Office 2016 for Mac was that he was having so many problems with Outlook 2011 for Mac. (Based on my recommendation, they are now planning to migrate all their users to Office 365. I upgraded one user at a client to Office 2016 for Mac the day Office 2016 for the Mac it was released. I provide support to small business users. It has been very frustrating working with Office 2016 for Mac. The Profile name contains special characters such as the slash mark. Microsoft Outlook 2016 for Mac: Spotlight Search indexing is incomplete.