cbe5b0a1_Part_1____www_telnetport25_com__Permissions_required
[Scenario] Importing PSTs to mailboxes in your Exchange Online (BPOS) 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 you specify on the Online Connection Settings tab of the PST Capture settings must be an Exchange Online administrator account.
Installing & Using the Microsoft PST Capture Tool–Part 1… — www.telnetport25.com
Permissions required