The directory data service lets you use the information that is stored in your Lightweight Directory Access Protocol (LDAP) directories for features in the Symantec Messaging Gateway.
Symantec Messaging Gateway provides four functions that you can enable for your data source: authentication, address resolution, routing, and recipient validation. You enable one or a combination of these functions for each data source.
Allow end users to configure email language preferences and Good and Bad Senders lists.
Address resolution and authentication
User preference functionality requires that a data source is enabled for both authentication (to let the user log in and set preferences) and for address resolution (to replicate the preferences to the Scanner).
Enable at least one policy group for end-user settings.