If you want to import PST to Exchange server then you should go with this Exchange Export Import Wizard which safely collect information from a PST files and convert the entire information directly to the Exchange server mailbox. This software also enable the users to export exchange server mailbox into Outlook pst file format in safe manner.
This software provide batch migration of pst files that can easily import complete pst files into exchange server. This software allow the users to selectively migrate directory at one click.
All users both technical or non technical can easily use this software without have any technical skill. Use it free demo version before using it full product. This demo version allow the users to scan and see the preview of convertible mails items.
Use this discount coupon (SYSMOON20%OFF) to get 20% discount on full licensed version.
Read more info:- https://www.softmagnat.com/exchange-export-import-wizard.html
here you will get some valuavle blog post and articles : https://www.softmagnat.com/how-to/index.html