[otrs] Email from external agent noted as Agent, how?

In old OTRS 1.3 if an agent send at email to a ticket (using as the from email address the same email address as the Queue) in the Zoom view of the ticket these agent emails would show as an Agent response and be colored as such. But in 2.3.3 external emails from agents appear as customer responses in the list. How to change to or enable the old behavior? -- Wes Plate Automatic Duck, Inc. http://www.automaticduck.com