Thanks for getting back to us, @rob-wilde.

To ensure that I'm on the same page, may I if you're getting any error messages when some of the emails are not sent? Any additional information will help me provide the best resolution.

Though we can't suggest the specific include:intuit.com, you can use any of the includes outlined in the article shared by my colleague above. Just in case, here's the link: 3 solutions for when customers aren't receiving your emails.

Please click the Reply button below to add more details, and I'll get back to you as quickly as possible. I'm always here to help. Have a good one!