Exchange Server: How to Export and Import PST from Exchange Management Shell
How to Export Mailbox from Exchange 2010 and 2013:
First Add Mail Import and Exprot Assignment if you need to:
New-ManagementRoleAssignment -Role "Mailbox Import Export" -User Administrator
New-MailboxExportRequest -Mailbox user -filepath \\localhost\pst\user.pst
Change user to the mailbox user you are trying to export.
To Check the progress type:
Get-MailboxExportRequest
To Import a PST file to another mailbox:
New-MailboxImportRequest -Mailbox newUser -FilePath \\Locahost\pst\exported pst file
