# Mapped Security

You can use Mapped Security to protect documents that you retrieve from Exchange using the Exchange Web Service Connector.

The connector can retrieve Access Control Lists that are attached to items in the repository. The connector adds an Access Control List to each document that is indexed into IDOL.

To use mapped security, you must also configure OmniGroupServer to extract LDAP group information from Active Directory.

For information about how to configure Mapped Security, see Exchange Mapped Security.

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