When you are working in the Home section on reviewing documents and you click the ‘Task’ button, the document that you currently have selected is automatically attached to the Task:
This currently is not the case when a user selects the New Message button:
Users would like the document to automatically attach to a message the way it attaches to a task.
[please see attachment for screenshots]
If you click the <Follow-Up Request> button, that creates a mail message with the item attached, as with <Tasks>.