To open a shared mailbox on Outlook Web App, you will first need permission to the mailbox. If you require permission, please contact the owner of the mailbox who may put in a Help Desk ticket for assistance.
- Login to Outlook Web App
- Click the user image in the top right corner
- Select "Open Another Mailbox"
- Enter the desired mailbox name or email address. You may select from the drop-down list.
- Left-click "Open".