On Mac, Dropbox for Outlook is available on version 2016 of the Outlook desktop application.On Windows 10 and up, Dropbox for Outlook is available on version 2016 of the Outlook desktop application.The Dropbox integration works with the following: Note: POP/IMAP email accounts like Gmail are not supported. The Dropbox for Outlook integration is available for email accounts hosted on Microsoft Exchange 2013 or later.