I have installed Windows 2000 Advanced Server and Exchange 2000 – both these are running on the same machine, which is the domain controller on the network. I need to enable Outlook Web Access to allow staff to check and work on their emails via theweb. It works fine on the LAN, but via an ISP it only works with Internet Explorer 4.x or with Netscape, but not with Internet Explorer 5. (On the LAN it works with everything). What could be the problem and how can it be resolved?
