Our small business uses Office 365 for exchange email, contacts and calendars. I am using Mac OS X El Capitan on a 27 inch iMac. Does anyone know of a way to have shared calendars with my coworkers work under the Calendar app? I can view them in Outlook 2016, just not Calendar. When I go to Preferences -> Delegation and add one of my coworkers, it says "The server responded with an error. The request for calendar failed." Outlook 2016 can open them fine, Calendar can not. Anyone with any solutions? Thanks guys!