Start by clicking File in your outlook client, then pressing the "Add Account" button as shown:
Configure the client as shown in the image below. Use email@example.com as your email address, and then bras****@OX.AC.UK as your username in the second popup which appears.
You may be presented either with an SSO login screen, or the Microsoft one on the left. Press "sign in with anoter account" and enter your full email address as usual, then login with your SSO as normal.