Access Manager 11g can operate with Windows Native Authentication (WNA).
This section describes setting up Access Manager with Windows Native Authentication (WNA) for Outlook Web Application (OWA).
Enabling WNA for the IIS Site front-ending OWA is described in the following procedure. It presumes a fully-configured Microsoft Active Directory authentication service is set up with user accounts to map Kerberos services, Service Principal Names (SPNs) for those accounts, and key tab files. For more information, see Oracle Fusion Middleware Securing Oracle WebLogic Server 11g Release 1 (10.3.3) E13707-03.
You need to configure Access Manager to use Windows Native Authentication (WNA), as described in Configuring Access Manager for Windows Native Authentication.