How do I add a shared mailbox on Outlook? (Online)
Once you have been permission given to a mailbox, please follow these steps;
Go to Office.com, or go to the intranet page and sign in to your emails.
Click on top of the 3 dots next to Your email address located in the left hand column
Click Add Shared Folder
Input the name of the mailbox you would like to open, Click Add
(The IT Service Desk is given below as an example)
The mailbox will then appear as shown