Hi all,

Today I got an assignment to recover a disconnected users mailbox emails received.

So here goes.

Step 1:

Allow permissions to user-account you are using.

New-ManagementRoleAssignment –Role “Mailbox
Import Export” –User whateveryouareusing

Step 2:

Connect-Mailbox –Identity
disconnecteduser –Database
mailboxdatabasename –user recovery.user
Step 3:
-gt in the specific date.
New-MailboxExportRequest -Mailbox
recovery.user -ContentFilter
“Received -gt ’02/07/2015′” -FilePath “server01exportwhatever.pst” 
And Technet article on Export Request Content filtering https://technet.microsoft.com/en-us/library/ff601762(v=exchg.150).aspx