To create a forwarding rule in the Microsoft 365 Outlook Web App 

  1. Go to https://www.office.com/ and login with your SU email and password.
  2. Click the Options gear in the upper right corner, and then choose View All Outlook Settings.
  3. Click Start Forwarding and enter an email address to receive your forwarded email.
  4. Choose to keep a copy of the forwarded messages and click Save.

To turn off forwarding, follow the above steps to reach the Forwarding option, and then un-check Enable Forwarding.