Entire Message Attachment Handler Properties
This attachment handler takes the entire incoming message data and stores it as a single attachment. The Raw message data afterwards is the attachment token.
The handler has a single property, MIME Type, which specifies what type of attachment data you expect to receive. You can use a specific value like "text/plain", or you can use Velocity replacement to inject source map variables. For example if you are using an HTTP Listener, you can use the MIME type coming in the Content-Type header: