How to open another USJ Mailbox from Office365

Problem

Unable to see other USJ Mailbox from myoffice.usj.edu (O365 Outlook) that you may have permission to view/access

Environment

USJ Faculty & Staff

Resolution

Cause

Unlike the Outlook desktop application, Outlook365 does not display additional mailboxes in the left pane that you have been granted access to.  Each mailbox needs to be opened separately following this procedure.