Login with the Exchange Control Panel URL below -

Login with Admin Credentials -

Double Click on Discovery Management and Add Administrator as a member of Discovery Management and Save it

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To Add a User in Mailbox Import Export Role – Run in Exchange Management Shell

New-Managementroleassignment –Role “Mailbox Import Export” –User “Administrator”

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Close and Reopen the Exchange Mangement Shell – so that the new commands will start working

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Now Before Deleting in Bulk , We can use a log only switch to verify how many Mails we are going to delete

and to verify the we are going to delete the right one

Get-mailbox | search-mailbox –searchquery “Subject:’virus’” –Logonly –Targetmailbox administrator –Targetfolder Inbox

Now this will show how many mailboxes have this content

A mail will be generated to Administrators inbox with Item Count As shown below –

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Now we will go ahead and delete it

Get-mailbox | search-mailbox –searchquery “Subject:’virus’” –DeleteContent

Before — From All the Mailboxes

Now its gone from All the mailboxes

Reference link -

http://technet.microsoft.com/en-us/library/dd298173.aspx

Hope it helped you to understand better !!

If you feel its too confusing – Check out the Automated Script to do these tasks for you

Discovery Search Simplified Script to Delete a Specific Email and other Tasks – Exchange 2010

Regards

Satheshwaran Manoharan