If this is your first time opening the program then you will initially be taken to a screen that will prompt you to create a new email account and Outlook will attempt to configure your account automatically.
If you have used and configured Outlook for an account in the past, then begin by clicking on Outlook then Preferences and selecting the Accounts button to add or modify an account.
At the bottom of the accounts window you will see the add accounts option.
Click +v and choose Exchange in order to configure a new Exchange email account.
Enter your full email address (email@example.com or firstname.lastname@example.org). Your username is your full email address and password, the same password as your current email address. When finished click Add Account.
A window may appear indicating that the connection was redirected to outlook.office365.com, this is normal and you should allow the response from the server.
After successfully authenticating you should see the following screen.
A green ‘light’ next to the account name indicates that your email account is successfully configured with the Microsoft Office 365 service.