I am currently migrating mailboxes from Exchange 2010 to Exchange 2013 on prem.  I have installed PST Capture 2.0 and 64-bit Outlook 2013 on a Windows 2008 R2 machine and have installed the PST Capture 2.0 agent on a workstation that has some .pst files on it.  PST Capture finds all the .pst files on the workstation, but when I use PST Capture to try to import PST files into a mailbox on Exchange 2013, I get the error "Import error: Error opening mailbox username@mycorp.com".

I created a userID with a mailbox to run PST Capture.  Based on the instructions at https://technet.microsoft.com/en-us/library/hh781035%28v=exchg.141%29.aspx I have made that user a member of the groups that are assigned the Public Folder Management role, the Mailbox Import Export role and the Organizational Management role.  The user is also a local admin on the machine running the PST Capture console.  While the error sounds like a permissions issue, these are the only permissions I could find documented for PST Capture.  I am starting PST Capture with "Run as administrator"

Any ideas why this isn't working?  Are there any other permissions that the PST Capture user needs?  Is there anything else I need to do?

Thank you very much for your help.

• Edited by Logan Burt Wednesday, April 01, 2015 11:49 AM

Thank you for responding, but I am already in the midst of migrating mailboxes. 

The problem is that PST Capture is failing when trying to import the contents of PST files into mailboxes that have already been migrated to Exchange 2013.

Instead of importing PST from one server and export them to upgraded one, I would suggest you to directly migrate users mailboxes from Exchange 2010 to 2013.

To accomplish this task in an easier way, you may use this automated software (http://www.exchangemigrationtool.com/) that could be an appropriate solution that provides a hassle-free environment to get this job done quickly.

• Proposed as answer by Simon_WuMicrosoft contingent staff, Moderator 22 hours 22 minutes ago
• Unproposed as answer by Logan Burt 22 hours 18 minutes ago