Open a web browser on a computer and navigate to outlook.com.
Enter the new username and password that were sent to you via email.
You will be prompted to change your password the first time you login.
You will then be prompted to set up multifactor authentication.
Open the Microsoft Authenticator app on your phone. This is a FREE mobile app on iPhone and android devices. The app logo should match the following:
Hit the plus sign (top-right corner of the Microsoft Authenticator app) and add a new work account.
You will be prompted to scan a QR code in the web browser.
You will be prompted on your phone to verify it is you logging in.
You may then be prompted to enter another personal email address for recovery purposes. This should be a different email beside your @usssa.com email address.
Now that you have activated your new @usssa.com Microsoft Outlook account, you may also: Setup forwarding of all your messages to your other email account.