Import Plesk Mail Backup into Outlook

Import Your Plesk mail backup Into Outlook.

Open Outlook, and click File in the menu
Select Open & Export, and choose Import/Export option. This opens the Import/Export wizard.
Choose Import from another program or file, and click Next
Select Outlook Data File (.pst), and click Next
Select the folder to import: located in documents\\Outlook Files\\backup.pst
Select Do not import duplicates or any option you prefer, and click Next
Enter the optional password you created, and click OK, and click Next
Select the folder to import from, and select the folder to import into, and select Finish. This completes your import.