Adding a shared mailbox to Outlook is quick and easy, follow the steps below to recieve and send emails from your shared mailbox on your Outlook client.

Permissions to access the Shared mailbox should first be granted in Microsoft’s admin portal be your Administrator before adding the mailbox.

Outlook Desktop

If it’s already been set up for you:
If your admin has given you access to the shared mailbox, it’ll usually appear automatically in Outlook after you restart the app. Just close Outlook completely, reopen it, and check your folder list — it should show up under your main mailbox.

If it doesn’t show automatically:

1. Go to File → Account Settings → Account Settings.
2. Select your email account and click Change.
3. Choose More Settings → Advanced tab.
4. Under Mailboxes, click Add, then type in the name or email address of the shared mailbox.
5. Click OK → Apply → Next → Finish.
6. Restart Outlook and the shared mailbox should now appear in your folder list.