Email templates that can be overwritten are two:
- “Ask for an estimate email”: ask-estimate.php
- “Promotional email”: promotion.php
To overwrite a template, go to “Emails” section of WooCommerce (WooCommerce -> Settings -> Emails), and select the related email.
At this point click on “Copy file to theme” button. A copy of the template file will be automatically created right inside your theme folder, at the specified path.