There have been times when a user has sent an email to a big DL and wants it to be recalled. We all know that Exchange recall feature is not much effective. However in Exchange 2007 you can scan all mailboxes and delete the email from them. The best way is to narrow your search as much as possible.
However remember that you need an account which has full access to the mailbox from which you want to delete the email. The BES service account generally has that permissions. You will have to "Run As" the EMS with this account.
Below are two examples of such command.
Get-Mailbox -Server SERVER_NAME -resultsize unlimited | Where-Object {$_.OrganizationalUnit -like "Mydomain.corp/OU/OU/OU*"} | Export-Mailbox -SubjectKeywords "Some keywords from the subject line" -DeleteContent -StartDate 10/08/2009 -IncludeFolders "\Inbox"
The above command finds all mailboxes from a particular server and which are in a particular OU. It then users the Export-Mailbox command to delete the mails as per the specified criteria.
StartDate is use to delete the emails that are after the specified date. You can also use EndDate to specify the range.
Include Folders further narrows the search and reduces the scan time considerably.
Get-Mailbox -Server SERVER_NAME -resultsize unlimited | Export-Mailbox -SenderKeywords "Sender's SMTP address" -DeleteContent -StartDate 10/08/2009 -IncludeFolders "\Inbox"
You can also delete emails from a specific sender using the above command.
Please be careful to test this command before running in production environment as you may end up deleting emails from users mailbox that they need if any wrong criteria is chosen.
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Tags: PowerShell, Exchange Server
Published Date: 20100107
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