Issue: Someone wants to add Office365 mailbox in Microsoft Outlook 2011 or 2016 on their Mac.Įnvironment: Mac, Outlook 2011, Outlook 2016ġ. Please be aware that Outlook 2011 will have to have all the current updates for it installed in order to access the office365 mailbox. This document will teach you how to add office365 mailbox in Microsoft Outlook 20 for Mac’s. This document will teach you how to add Office365 mailbox in Microsoft Outlook 20 for Mac’s.