Mailbox mails to be remove through shell

Hi,

I need to keep one of the mailbox mails to be reserve present two days only and past mails are to be removed.

I have tried below command from exchange shell but it's not worked out.

Get-Mailbox -identity migrationking@domain.com | Search-Mailbox -SearchQuery 'Received:<(Get-Date).AddDays(-2).ToString('MM-dd-yyyy')' -TargetMailbox "migrationking@domain.com" -DeleteContent -loglevel full

Please suggest on this.

Regards,

Kumar N