Option 2: Using the Delegates settings To open a shared Inbox, Calendar, Contacts, Tasks or Notes folder: The folder will appear in your folder list on the left side of the Outlook window.For example, if you have a shared subfolder located in Inbox, you need to choose the corresponding type of top-level folder (Inbox) and click OK. Note: Open Other User's Folder is the best option to display a shared subfolder. In the Open Other User's Folder window, in the User box, type the email address of the folder's owner, or select the user from the address book. In the Type box, select which folder you need to open (Inbox, Calendar or Contacts).In Outlook go to File > Open > Other User's Folder.Option 1: Using the Open Other User's Folder feature To open a shared Inbox, Contacts or Calendar folder:

Important:the folder must be shared with the Reviewer permissions at least. If you need to open Tasks or Notes, you must use the second method, which uses the Delegates settings. The first method will allow you to open an Inbox, Contacts or Calendar folder. This article describes two ways to open a shared folder.

Read the Knowledge Base article on How To Share Folders In Outlook 2011/2016 For Mac for information on how to share a folder. Before you can open a shared folder, you need to know who granted you access and what type of folder it is.

Open outlook contacts