I need to perform scenario 2 from this blog. However the command doesnt work as advertised. It does work if you change the permissions on the users account. So to run the one command I need to perform 3 steps. One give permissions, two remove the content from all the users and finally change the permissions back to how they were before the export took place. This is what I have so far... Get-Mailbox -ResultSize Unlimited | add-MailboxPermission -User "administrator" -AccessRights FullAccess get-mailbox | Export-Mailbox -ContentKeywords "content from email to be removed" -TargetMailbox "administrator" -TargetFolder 'Exported' -DeleteContent Get-Mailbox -ResultSize Unlimited | Remove-MailboxPermission -User "administrator" -AccessRights FullAccess I have tested the above and this works fine. My issue is this only needs to happen to about 1,000 users of the 20,000 users we have. Running my commands above will be applied to all 20,000 users which will be quite CPU intensive. Can anyone suggest a better way to complete this task? Some info that will be key into finding my target users: These users have a certain domain set as their main SMTP address (*@external.domain.com). The target users belong to one single mailbox database and storage group. Many thanks for your help.

you can use Get-Mailbox -Filter {EmailAddresses -Like '*@external.domain.com'}MCSE | MCITP - Server 2008 | MCITP - Exchange 2007 | MCTS - Exchange 2010

Or even better you could use Get-Mailbox -Database SG/DB -Filter {EmailAddresses -Like '*@external.domain.com'} | add-MailboxPermission -User "administrator" -AccessRights FullAccess Get-Mailbox -Database SG/DB -Filter {EmailAddresses -Like '*@external.domain.com'} | Export-Mailbox -ContentKeywords "content from email to be removed" -TargetMailbox "administrator" -TargetFolder 'Exported' -DeleteContent Get-Mailbox -Database SG/DB -Filter {EmailAddresses -Like '*@external.domain.com'} | Remove-MailboxPermission -User "administrator" -AccessRights FullAccess MCSE | MCITP - Server 2008 | MCITP - Exchange 2007 | MCTS - Exchange 2010

Thanks a lot. Works great. I found though when I ran the first command it shows that some people were in different databases much to my surprise. My guess is that they are spread across two databases depending on their role. Anyway thanks again. Voted.