1. log into the Microsoft outlook web app.
Link to web app: https://emea.outlook.nolato.net/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2femea.outlook.nolato.net%2fowa%2f
2. On the left side of the screen Select "in-Place Archive", then select "inbox".
The in-place archive will have all your emails going back to when the account was created.