In addition to older exchange versions it’s relatively easy to export an complete mailbox to a .pst file.
Just open the Exchange management shell and type in:
New-MailboxExportRequest -Mailbox ACCOUNTNAME -FilePath “\\localhost\c$\Export\filename.pst”
The command will now get executed, go to the location you defined and check when the .pst stops growing in size.
The export is now done!
To view the status of your export request you can type:
If you get errors when trying to export you might want to enter this:
New-ManagementRoleAssignment -Name “Import Export_Enterprise Support” -SecurityGroup “Enterprise Support” -Role “Mailbox Import Export”
If the .PST export is going slow you have to install SP3 of Exchange 2010!