How can I edit the message of the email sent by Wagtail when a page is submitted for moderation?

I'm trying to edit the content of the email sent by Wagtail when a page is submitted for moderation, I've dug into the Wagtail source code and it turns out there is a function called send_mail which actually sends the emails to all the subscribers when a page is sent for moderation, this function is called by another one called send_notification which takes some notification templates (HTML and txt files) depending on the type of action (submitted, approved, rejected) of the page, those templates contain the email content and I haven't found the way to override the content of those templates from my Wagtail project.

If someone has done that before, I really appreciate your help.

Thank you!

I'm expecting being able to edit the content of the emails because I want to add some custom fields like comments.

Any time Django is asked to render a template - including within Wagtail's notification email module - it will look for a template with a matching filename within each of the apps listed in INSTALLED_APPS in turn, and use the first one it finds. Therefore, to override one of the email templates from wagtail/admin/templates/wagtailadmin/notifications/, you need to:

• have an app in your project that's listed above "wagtail.admin" in INSTALLED_APPS in your project's settings file
• create a file within the folder templates/wagtailadmin/notifications/ in that app, so that it takes precedence over the template provided by Wagtail.

The Django documentation has more details on how templates are located, and how to override them.

For example, if you want to override the template /wagtail/admin/templates/wagtailadmin/notifications/approved.html (the email sent when a page is approved), and you have an app named myapp in your project that's listed above "wagtail.admin" in INSTALLED_APPS, you should create a template at the path myapp/templates/wagtailadmin/notifications/approved.html.