Add Shared Mailbox in Outlook

Overview

User must be a member or have delegation access to the mailbox then Follow the steps below to add a shared mailbox in your Outlook.

Here are the 2 ways to open a shared mailbox.

Outlook On-prem (local install)

1. In Outlook app go to File and click Account Settings

2. In Account Settings, select the user data and click Settings

3. Go to the Data Files tab 

4. Click on Settings and a Window will appear then select the Advanced tab 

5. On the Advanced tab section, click on the Add button on the right side then type the email address of the mailbox and click OK 

6. Click on the Apply button for the changes and click the Ok button to exit

.

7. Close the Account settings window, you can close and relaunch the Outlook App and the mailbox should appear at the bottom of the left navigation pane. 

Outlook Web App

1. Open a browser and login to https://outlook.office.com/owa/

2. On the top right corner, click your Photo or profile to see the other settings

3. Click on Open another mailbox

4. Type the Shared mailbox Name and click Open. It will open another tab for your shared mailbox.

You should now see the additional mailbox listed in the left navigation pane of your Outlook web app.