I know some ways on how you can reprint an emailed transaction, PBelcher.
You can go to your email and look for the sent invoice. You can also manually reopen the invoice with the customer message and print it in QuickBooks.
I found a helpful article on how to verify if an invoice was emailed and read by the recipient: https://quickbooks.intuit.com/community/Help-Articles/Verify-that-an-invoice-was-emailed-and-read-by....
Don't hesitate to reply to this post if you need anything else. I'd be glad to help.