[Answer]-How to overwrite the default email message for user account activation in django-userna?

You don’t need to copy whole django-userena module in you project directory. You only need to copy “emails” folder from userena/templates/userena/ into you project template directory with same directory structure.

For Example : you_project_dir/templates/userena/emails

After that just change activation_email_message.txt file content in emails folder of your project template directory.