When you customize an email template through the Outlook extension, the default message appears below the template.
It will be better to delete the original template below and keep the customize one.
I created an idea/feature request for this behavior here: Outlook Extension -- Allow complete customization.
lcarlos feel free to review these docs on feature requests. Everyone can create ideas.
How to Create an Idea or Feature Request
How Do Ideas and Feature Requests Work
Retrieving data ...