To add a shared mailbox to Outlook for PC:
- Open Outlook and select File.
- Click on Account info.
- Select Accounts on the side bar. In the sub menu, click Your Accounts, then click Add Account
- Enter the the shared email address that you want to add, then click Continue.
- When asked for a username and password, remove the email address that is pre-filled in the username text box.
- Enter your SHSU username and password.
- Select Sign In.
- Click Done.
You will need to restart Outlook to see the account listed.