Using Classic Outlook on Windows for personal email, calendar, and contact management
Hi Michael ,
Thank you for the reply . Please make us know the latest information after the test .
For the second question , according to my test and research , if you open shared mailbox by clicking “open another mailbox” on the right corner , the add-ins will not show up . If I open shared mailbox from here , the add-ins appear .
Please right click on the primary folder and click “Add shared folder…” to add shared mailbox to OWA and try again .
Besides , may I confirm does it happen to all the accounts or just your account ? If it happens to just one account , please ask your admin to check the settings in the last reply or recreate a account and try again .
Best regards ,
Rick