Using the out-of-the-box facilities of Word alone, the only way you can get
close is to select the "Attachment" format when you do the merge to e-mail.
Your recipients will need to be able to read Word format .docs, and
unfortunately your message will have no body text.

Whatever you do, don't forget that recipients are not necessarily using the
same e-mail client as you or may have it configured differently. They may
not be able to view HTML mail (or may prefer not to), and so on.

Peter Jamieson