Using the Exchange 2010 Mailbox Export features for Mass Exports to PST files

New-ManagementRoleAssignment –Role “Mailbox Import Export” –User AD\Administrator

New-MailboxExportRequest -Mailbox Administrator -FilePath “\\AZUA\Exports\Administrator.pst”

 

Taken from: http://www.stevieg.org/2010/07/using-the-exchange-2010-sp1-mailbox-export-features-for-mass-exports-to-pst/