To Add an email account to Microsoft Outlook on a Mac:

1a) The first time you open the Outlook app on a Mac, you will likely be faced with the following screen:

In order to add a new account, you will need to click the Add Email Account button.

1b) If you already have an account signed in to the Outlook app, you will need to go to the Tools menu at the top of the screen and then click on Accounts.

On the Accounts window, you will need to click the '+' in the bottom left and then click New Account.

2) In the next window, you will need to enter your Email address and then click continue.

3) On the following screen, you will need to enter your account Password and then click Sign in.

4) The account should now be added. If you wish to add another account, click Add Another Account and repeat the previous steps. If not, simply click Done and close the accounts window.