Select + button at the bottom left of account list and select Exchange from the menu.
Account-Select Exchange Account.
Enter the following information:
E-mail address: e.g. john.smith@anu.edu.au for staff, u1234567@anu.edu.au for students
Method: User Name and Password
User name: e.g. u1234567@anu.edu.au
Password: your ANU password
Configure automatically: On (check the box)
Select Add Account.
When prompted allow the server autodiscover-s.outlook.com to configure your account.
Check Always use my response for this server.
Select Allow.
Once Outlook has configured itself, you may wish to rename the default account name, for example: Account Description: ANU Email (or your own description)