How to Add a Colleague's Mailbox to Outlook

If you frequently work with someone else’s Email or Calendar, you may need to add the other person’s mailbox to your Outlook profile. Doing so will automatically open the other person’s mailbox every time you open Outlook. The other mailbox appears in the Folder Pane beneath your Exchange mailbox folders.

NOTE: Your colleague will need to grant you permission to their mailbox. Please refer to Allowing a Colleague to Manage your Email and Calendar for instructions.

Open Outlook.
Select the File tab.
Select Open & Export.
Select Other User’s Folder.
Select Name.
Use the Search field to locate and select the person who granted you access to their mailbox.
Select OK.
From the Folder dropdown menu, select the item you want to open.
Select OK.