Publishing the Outlook Web Access Site using Web Publishing Rules We will use a Web Publishing rule to publish the Outlook Web Access Server. Before the Web Publishing rule will work, the network infrastructure needs to be configured to support Web Publishing. You ll find many of them quite helpful in solving your ISA Server configuration issues. You will need to create a Destination Set before you create the Web Publishing rule. The Destination Set will be used to redirect requests for Outlook Web Access specific subfolders to the Outlook Web Access server.
Call is something like Outlook Web Access like in the figure below.
After giving it a Name and a Description , click the Add button. In the destination box type in the FQDN or IP address of the external interface of the ISA Server to which the external users will connect. When you are finished, the properties of the Destination Set should look like the figure below. After the Destination Set is completed, click OK . After the Destination Set is configured, you can use it in the Web Publishing rule used to publish the OWA server.