Outlook: Switching to Classic
Outlook: Switching to Classic
From new Outlook, select the toggle to switch in the top right corner to turn it off and go back to classic Outlook.
New Outlook will close, and a feedback window appears. Respond to the feedback and click Submit.
(Each time you toggle back to Classic Outlook from New Outlook, you're asked to provide feedback on your experience.)

For more information, please visit Outlook Help & Learning.