The Envelope/Body/Attachment exclusion checkboxes do not work on the agent prior to DLP version 16.0. They only work only on the server.
Prior to DLP version 16.0, this is as designed.
On the endpoint the "Match On: Envelope, Subject, Body, Attachments" selections are ignored and the endpoint will match on all components.
The following mappings between Server and Endpoint component are used by the new execution engine.
For channels that allow full-component categorization; for example, the mail client and HTTP:
Server Component Endpoint Component
Envelope Envelope
Subject Envelope
Body Body
Attachment Attachment
For all other channels:
Server Component Endpoint Component
Envelope Envelope
Subject Generic
Body Generic
Attachment Generic