Attachment as body

Hello,

I create a really nice email template in HTML but apparently Outlook doesn’t like that at all. So I installed this plugin: Send PDF for Contact Form 7 which creates an PDF from the correct values. The HTML and CSS also work correctly so that’s nice. The problem I’m having is that this PDF is added as an attachment. I would like the PDF to be the body so I can see the content immediately (it’s and customer support form so no external use) and so I don’t have to opened the attachment first. I tried adding the attachment code as the body in the form editor but that only puts the name + extension in the body not the actual file.

If someone has another solution please let me know.
Thanks