The instructions for configuring access to Enterprise Vault assume that you have already completed the following tasks:
Configured your Exchange environment and Outlook profiles for RPC over HTTP for Outlook.
If you plan to use an Enterprise Vault proxy server, then you may want to configure SSL for client connections on that server also.
Configured your Enterprise Vault server to archive Exchange Server mailboxes, public folders, or both.
Installed Enterprise Vault Outlook Add-Ins on the desktop computers.