I posted about this in Adventures with OPATH: some annoyances if you’re used to LDAP, shortly after Exchange Server 2007 RTMed (Yes, it has really been that long… ). Here’s a quick recipe to create a Dynamic Distribution Group to include all mailboxes on a database. $DB = (Get-MailboxDatabase “SERVER\Storage Group\Mailbox Database”).distinguishedName New-DynamicDistributionGroup MyGroup -RecipientFilter […]