You need to configure the "Send e-mail" components for each of the e-mails that is being sent out. By default only the "send HTML part" is configured, but there is also a "Send plain text" part.
You'll notice two problems/challanges with this approach:
- When using the "Send plain text" it will not preserve any line-breaks... it's all in one long row, making this rather unusable. I have a ticket open with Symantec on that one, which is still under investigation.
- The other issue is that the send e-mail components are nicely distributed across many different workflows, making it quite a hassle to trace them all down and change them all.