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

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 Thursday, April 02, 2015 9:01 AM
• Unproposed as answer by Logan Burt Thursday, April 02, 2015 9:05 AM

So unfortunately I am not sure why you are receiving this error, however;

1. Are these PST's the product of exporting the information from your Exchange 2010 server?

2. If yes to # 1 do you by chance still have a backup of the Exchange 2010 Databases? 

3. If yes to # 2, you should definitely check out our DigiScope product http://www.lucid8.com/product/digiscope.asp since it allows you to open and offline EDB of any version and restore/migrate the data directly to any other version of a Production Exchange server

4. If no to # 2 DigiScope will allow you to also import PST files into any Production Exchange Server, however its not as slick as using the EDB.

Generally PST capture tool allows you to search for PST files & import these PST files to the mailboxes but as your account is not getting connected, so you need to check settings of your PST Capture tool : https://technet.microsoft.com/en-us/library/hh781032(v=exchg.141).aspx

If this solution does not work out for you, then I would advise you to use any professional tool for exchange migration like CodeTwo , Stellar. From my personal experience, I would recommend you to go for Stellar Mailbox Extractor for Exchange Server as it migrated my mailboxes to another Exchange Server in quick time.