Outlook RPC over HTTP client and Exchange Server 2003 configurations

In an Exchange Server 2003 environment, front-end Exchange RPC servers are called RPC proxy servers, and back-end Exchange Servers are called RPC target servers.

To support Outlook RPC over HTTP client connections to Enterprise Vault, you need to install the Enterprise Vault RPC 2003 Extensions on your Exchange Server 2003 RPC proxy and target computers.

You can enable Enterprise Vault support for both OWA and Outlook RPC over HTTP client connections. Follow the instructions for configuring the Enterprise Vault OWA Extensions first. You can then work through this chapter to complete the configuration that is required for Outlook RPC over HTTP client connections.

Figure: Example Outlook RPC over HTTP client and Exchange Server 2003 configuration

In Figure: Example Outlook RPC over HTTP client and Exchange Server 2003 configuration Outlook is configured for RPC over HTTP, and the Enterprise Vault Outlook Add-Ins are enabled for RPC over HTTP connections.

RPC over HTTP settings in the Enterprise Vault Exchange Desktop policy let you configure how the client sends requests to Enterprise Vault:

The default Enterprise Vault Exchange Desktop policy settings assume that clients send requests to Enterprise Vault through Exchange RPC proxy and target servers.

To support this configuration, the Enterprise Vault RPC 2003 Extensions must be installed on both the RPC proxy and target servers.

The client connects to the Exchange RPC proxy server You can set the URL to use in the Enterprise Vault Exchange Desktop policy. If a URL is not specified in the Enterprise Vault policy, then the client uses the proxy URL configured for RPC over HTTP in the Outlook profile.
Alternatively, you can configure Enterprise Vault Outlook Add-Ins to connect directly to the Enterprise Vault server. With direct connections, all the Enterprise Vault servers that host the archives must be accessible to the internal and external clients.

Note that the Enterprise Vault RPC 2003 Extensions are not required to support direct connections to the Enterprise Vault server from Outlook RPC over HTTP clients.

Detailed configuration instructions are given in the following section.

See Configuring Exchange Server 2003 RPC over HTTP client access to Enterprise Vault.

If RPC over HTTP users access the Exchange Servers through an ISA Server, you also need to configure the ISA Server for Enterprise Vault connections. The ISA server needs to publish the Enterprise Vault URL that clients use for direct connections.