Accessing other people‚Äôs mailboxes in Office 365

There is a topic for this: https://support.microsoft.com/hr-ba/help/10048/accessing-other-people-s-mailboxes-in-office-365

The basic steps are:

  1. Go to https://outlook.office365.com/ecp/ if you have Office 365 tenant administrator credentials
  2. Select Recipient and edit
  3. SelectRecipient
  4. Add yourself to “Send As”, “Send on Behalf” and “Full Access”
  5. AssignPermissionToReadEmail
  6. In your mailbox, add a new shared folder and enter the person that you want to see emails
  7. AddSharedFolder
  8. Bem, you should be able to see his emails under shared folder
  9. OtherPersonMailbox

Happy administrator!