Situation: Whenever the suer click on New Email, the Outlook closes.
Resolution 1: Go to Control Panel>Programs and Features>Uninstall. Highlight the Microsoft 365>Change>Repair>Online repair.
Resolution 2: Create a new email. profile. Go to Control Panel>Mail. Create a new email profile. Restart the Outlook using the new profile.
Resolution 3: If you see an event viewer error with Add-ins, you may want to disable the add-ins. Or disable all add-ins for a test.