1. With Outlook open, click File on the top left.
2. Navigate to Info>Account Settings and click Account Settings
3. In Account Settings, highlight the email address and click Change…
4. Under exchange Account Settings, move curse in the download email for the past to maximum.
5. Click Next
6. Click Done and restart the Outlook.
7. Now, on the bottom of the emails, you should see There are more items in this folder on the server. Click here to view more on Microsoft Exchange.
Please view this step by step video: