Regarding the above reply:
1 - LDAP integration for custom attribute lookup can be used for more than just SMTP incidents.
2 - Plugins.properties and the LiveLDAPLookup.properties file are no longer used (or more accurately, are not manually configured). Lookups and plugins are all configured through the DLP user interface.
AD authentication for the UI is, as mentioned, controlled by the KRB5 file, along with a few settings in the DLP console, and instructions for configuration can be found in the product documentation.
Regards,
~Keith