Viewing URLs for Group Expansion

To expand membership in a distribution group, the Office Communications Server 2007 R2 server contacts an Internet Information Services (IIS) server that hosts the distribution group expansion service. During setup, you can configure two URLs, which you can view later by using Office Communications Server 2007 R2. These URLs include the following:

Internal URL. Used when an internal user sends an instant message to a distribution group. The internal URL identifies the location of the Web service that enables distribution group expansion for internal clients. This URL is hosted by the internal Web Components Server. The Front End Server provides this address to clients as part of in-band provisioning.
External URL. Used when an external user sends an instant message to a distribution group within your organization, if support for external users is configured for your organization. The external URL identifies the location of the Web service that enables distribution group expansion for remote clients. This URL is hosted by the reverse proxy in the perimeter network that points to the internal URL. The Front End Server provides this address to clients as part of in-band provisioning.

To view the URLs used for distribution group expansion

Open the Office Communications Server 2007 R2 snap-in.
In the console tree, expand the forest node, and then do one of the following:
- For an Enterprise pool, expand Enterprise pools, right-click the pool, click Properties, and then click Web Component Properties.
- For a Standard Edition server, expand Standard Edition servers, right-click the pool, click Properties, and then click Web Component Properties.
- In the <pool> Web Component Propertiesdialog box, click the Address Booktab.
On the Group Expansiontab, Internal URLdisplays the URL used when an internal user sends an instant message to a distribution group and External URLdisplays the URL used when an external user sends an instant message to a distribution group.