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any apps for managing a PST / outlook data file?

I am trying to migrate my first user from in house exchange to office 365 on a different domain.

He has LOADS of folders under the inbox.   I exported that account as a PST then imported the PST on another machine into the new 0365 account.  It seemed like contacts and calendar moved over (they both show the same number of contacts and calendar entries.)

But some / lots of folders are missing mail.  Is there an app  / way to print the folder size data rather than scroll through the window when in outlook?
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Sr. Systems Administrator
But some / lots of folders are missing mail.

how are you exporting now?
have you tried powershell? what exchange version?

Export-Mailbox (2007)

Create a Mailbox Export Request (2010)

New-MailboxExportRequest (2013)
powershell runs on the server, right?  I don't have access to the server.

I am hoping to export from the outlook client.  7.5GB of data - should I just backup the subfolders as smaller PSTs and import each separately?
Will SzymkowskiSenior Solution Architect
Most Valuable Expert 2015
Top Expert 2015
powershell runs on the server, right?  I don't have access to the server

You can run powershell from a workstation as well. This create a remote connection to Exchange and you can export mailboxes to PST's.

You need to ensure that you have the Exchange Manangement tools are installed and ensure that you have the proper permissions to export the mailbox (which is full mailbox permissions) on the mailbox you are exporting (Exchange 2007) if you are using 2010 or 2013 you need to create a new role assignment policy for "Mailbox Export import"

If you want to do it directly from the Outlook client see link below..

I kinda moved on to another question - I manually compared things  on each machine : )