Ringo is a delegate of Paul's mailbox in Exchange, but when Ringo sends mail from Paul's mailbox, the recipient sees "Paul" in the sender field, rather than "Paul Sent On Behalf Of Ringo"
Paul has set "Editor" permissions for Ringo to his mailbox, and Ringo has been granted "Send on behalf of" permissions in Exchange.
Ringo did at one time have "Send As" permissions for Paul's mailbox in Exchange, but this has since been removed.
This is also the case for all other delegates to Paul's mailbox.
How do I make it so that emails sent by Paul's delegates show the "Sent On Behalf Of" information in the Sender field?
Using Exchange Server 2007 and Microsoft Office Outlook 2007