I created a site mailbox on new created site in Sharepoint by technet article. All of new users except site collection admin who are unable to login site mailbox and get below error:
Almost there!
This site mailbox is all set up, but it looks like you don't have permission to access this site mailbox. Double-check to make sure that your name appears in the site's default owners or default members group. If you were recently added, it may take up to one day to receive access.
Anybody know how to fix it?
Clarence Mei