Scenario: You want to export mail from a mailbox into a PST with a filter of between two dates.
Run this command:
New-MailboxExportRequest -ContentFilter {(Received -gt ’01/01/2014′) -and (Received -lt ’04/01/2014′)} -Mailbox “testuser1” -Name testuser1 -FilePath ServerSharetestuser1.pst -baditemlimit 999 -acceptlargedataloss
Ex-Shell 