We have been working with Hypercat concerning issues in Exchange 2003. The solutions, support and information provided by Hypercat have been excellent. Our project included testing and configuration for Outlook Web Access. We can access OWA from the local network but not from the Internet. We believe the issue is relating to a Sonicwall Pro100 device on the network.
The following instructions were provided by Hypercat:
What you need him to check is whether those two ports are open for incoming as well as outgoing traffic, and whether the incoming traffic on those ports is redirected (i.e., forwarded or NATted) properly to the internal IP address of the SBS server.
If possible, we would like specific instructions on how to review the configuration of the Sonicwall device to determine if ports 80 and 443 are set as mentioned above. If we determine that the ports are not set, how do we change the configuration? We did not install this device and do not have experience with this particular model. We can access our customer's server thru Remote Desktop.