Hi Jim,
I think Stephanie might be right. Sorry if I mislead you. For some reason, I thought it would still send the MHTML in the body. I should know this since my team worked on the feature when I was still at MS. I'd like to reconfirm though. Did you send e-mail from a view that had data in it? OR was it a blank view. We can take a look at this. Obviously, as Stephanie says, you can use code to achieve this.
Patrick Halstead
Project Manager at Qdabra