Try setting up another admin user account to see if the same problem continues. Also try the Safe Mode.
Last year, we announced the rollout of add-ins to Outlook 2016 for Mac in Office Insider. We are now making add-ins available to all Outlook 2016 for Mac customers who have Exchange 2013 Service Pack 1 or higher, or Office 365 or Outlook.com mailboxes. Microsoft Outlook 16.43 for Mac is available as a free download on our application library. This Mac download was checked by our antivirus and was rated as safe. The software is included in Developer Tools. The size of the latest downloadable installer is 778.9 MB. This Mac application is an intellectual property of Microsoft Corporation.
Safe Mode Startup – El Capitan. also Sierra
If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.
Apr 19, 2018 10:26 AM