Using Classic Outlook on Windows for personal email, calendar, and contact management
Hi, Andrew
Good day!
Thank you for posting to Microsoft Community. We are happy to help you.
According to your description, the issue of your concern that the sent email from QuickBooks cannot be edited in Outlook if my understanding is correct.
Based on our searching from QuickBooks official forum, please refer into here - Private Message .
Thanks for your time and your understanding would be highly appreciated.
Sincerely,
Alex | Microsoft Community Moderator.