yup.

go to wppizza->settings and change “Select Type of Mail Delivery” to “HTML and plaintext”

if you do , you *might* want to edit the html template.

preferably though, use the action and filter hooks provided in those templates to take advantage of any further improvements/developments

If you do decide to edit the template directly, move “wppizza-order-html-email.php” from the wppizza template directory to your theme folder (or into a subdirectory named ‘wppizza’ and edit as required

if you want to use smtp, you can do the same with “wppizza-phpmailer-settings.php” and edit as needed or just use one of the many smtp plugins you can find on wordpress.org – as of wppizza 2.15+ use the action hooks provided.
examples how to use these can be found at the top of the /inc/phpmiler.php file

(when i get the chance i will naturally also copy these to the actions/filters/constants section)