We are currently experiencing a logon problem with Outlook Web Access. The box has NT4.0SP6a and IIS 4.0 and Proxy 2.0 loaded to it. The Exchange computer sits behind on another network. All users access the proxy box for Internet connectivity. When a user from the outside enters our Intranet (default website on the proxy box), then try to logon to Outlook Web Access they get error 403 not authorized. I have looked at the technet doc regarding this error and OWA is setup with defaults. When I test conectivity from the attached network, using the IP address only Admins can gain access to OWA but all users can access the default website. When a user enters the WINS name of the server they can access both the website and OWA. That doesn’t help since the WINS name is only available internally and bypasses the proxy config. I have gone through all of the user permissions for Exchange and IIS, am I missing something? Does it sound like a Proxy problem? If so what is it? Thanks for the help.
