A client of ours is having problems with Exchange email. We are running Windows Small Business Server, and have configured Exchange Server. The email goes out, but takes forever to be delivered. Sometimes does not even get delivered. We have checked into all the obvious issues concerning Exchange. The MTA Service, which is not running, nor does it need to be, ISP DNS, and Disk Space. All look fine. Is there anything else that we should be checking. Thanks in advance for the support.