cbe5b0a1_Part_1____www_telnetport25_com__Permissions_required
[Scenario] Importing PSTs to mailboxes in your on-premises organization [Permissions required] 
You must be logged on with local administrator privileges on the computer where you run the PST Capture Console. The user account that the PST Capture Central Service uses must be mailbox-enabled. The user account that the PST Capture Central Service uses must be assigned the Public Folder Management role in your Exchange organization.
Installing & Using the Microsoft PST Capture Tool–Part 1… — www.telnetport25.com
Permissions required