Open Shared Mailbox

The shared mailbox appears in Outlook for Windows automatically but you need to open it manually on the web, smartphone or macOS. 
 Web 
 There are two options: 
 
 Pin it: 
 
 Right-click on Folders and select Add shared folder or mailbox . 
 
 Enter the name of the shared mailbox. 
 
 Click on Add . 
 
 
 Open it in a new tab: 
 
 Click on your picture in the upper right and select Open another mailbox . 
 
 Enter the name of the shared mailbox. 
 
 Click on Open . 
 
 
 
 Smartphone 
 
 Click on your picture on the upper left 
 
 Click on + in the left menu that just openend and choose Add shared mailbox 
 
 Enter the shared mailbox you would like to add and click Continue (authentification is handled by your personal account) 
 
 Nice! 👍 
 
 
 macOS 
 File > Open > Shared Mailbox