When trying to connect to a 'shared' e-mail account follow the below steps
to properly configure your Outlook Web App (OWA):
1. In the 'Mail View', right-click on your
name in the left-side pane and choose
"Open Other User's Inbox..."
2. Type in the 'username' of the
shared e-mail account and click "OK".
3. The new mailbox should now appear
in the left window pane.