If you want to view your legacy local mailbox account, you can change Outlook profile to the previous profile.
1. Select the File tab from the menu ribbon.
2. Press the Account Settings tile and select Change Profile from the dropdown menu.
3. A pop-up window will warn you that Outlook will have to be restarted. Press the OK button. Microsoft Outlook will automatically close.
4. Open your Microsoft Outlook desktop client.
5. Select the profile you would like to open from the drop-down menu and press the OK button.
Note: You can switch between your profiles using the above steps at will, but restarting the Outlook desktop application is required each time you switch between profiles.