The article below may also give you some help.Ĭompare mail app support in Outlook for Mac with other Outlook hosts The link below shows more details.Ĭan you access the app URL ( successfully from a browser? Sign into the Exchange Admin Center to verify In Outlook for Mac, choose Manage apps in the app bar.
Any one of the Outlook rich clients can disable a mail app for performance reasons. I will recommend you to check whether the mail app has been disabled.
Here are some steps you could try to troubleshoot this issue. Mail App not appearing in MAC outlook version 15.3Īccording to your description, I'm not able to indentify the root cause of this issue.
