Emailing within email client creates new request

Emailing within email client creates new request

When technicians reply to a request within their email client (Outlook), SDP creates a new request.  I want to APPEND the email reply to a ticket,not open a new request.  Technicians often have to respond to requests from their mobile device so this is a pain since an email conversation will generate many service requests.....

How do I configure this in SDP?  I know other service desk applications offer this basic configuration feature....  

                  New to ADSelfService Plus?