- Log into Send Grid
- In the navigation menu on the left, click Settings (1) and then Mail Settings (2)
- Find the "Legacy Email Templates" section and click the Inactive (1) button to configure your HTML template.
- Click the Off (1) button to turn on your HTML templates and hit the Edit (2) button to edit the HTML template and then the Source (3) button to input your HTML code. Make sure you start your code with the <% body %> tag or SendGrid will reject your code.
Once your code has been entered, hit the Source (1) button again to preview and if approved, select the checkbox (2) to save.