How to delete Mail from globally based on subject in Exchange server 2007

How to delete Mail from globally based on subject in Exchange server 2007

Exchange server 2007: had to run this one first to add permissions.

1.

Get-Mailbox -Server Exchange server name | Add-MailboxPermission -User Administrator -AccessRights Fullaccess -InheritanceType all

2.

Get-Mailbox -Server Exchange server name | Export-Mailbox -SubjectKeywords “.................” -DeleteContent