Open a Shared or Delegated Mailbox (macOS)

Introduction:
This article explains how to add a shared mailbox or a delegated mailbox to your Outlook desktop application on macOS. 
A delegated mailbox is a standard email account (for an individual or role) that grants you permission to view messages or send emails on its behalf, without sharing its login credentials. This approach is recommended, as access can be managed or removed at any time.

A shared mailbox does not have its own login credentials and must be accessed through delegation. In both cases, the mailbox is added as a separate inbox within your Outlook application as part of the Microsoft 365 desktop suite.

 How to Open a Shared or Delegated Mailbox

1. In Outlook, in the Tools menu, choose Accounts.
   

    

2. And choose the account that has access to the shared or delegated mailbox. This is usually your Default account.

   

3. Click on "Delegates and Sharing".

   

4. Choose the Shared With Me tab

5. Choose + to add a shared or delegated mailbox (type here the email address or the name of the account you want to add, then click add)

 
6. For this example, I was adding Kevin's email. So I typed his email address, then I clicked "Add".

7. After that, Outlook will check if I have permission to add that account, and if I do, the account will be added, as you can see in the image below.

 
 
8. You can close the account Window, and you will notice that now your inbox has the account you added.