Hi, I have a problem with Exchange Server 5.5 configuration because I don't have knowledge about it. I have one PC Server (OS Windows NT Server 4.0) connected to ISP. My Server have two Network Cards. One Network Card content the ISP IP Address including DNS and the other one is internal IP for my local network. I have 20 PC clients connected to that Server. Each clients have an email address. My questions: 1. How to configure the Exchange Server so th clients can send and receive email. 2. I have installed the server with Proxy Server so they can access internet. Do we need to configure the proxy ? 3. If you know websites that contain step by step configure Exchange Server 5.5, I need it. Thanks