Show Simplenews this is a test version of newsletter in email

Background information: https://www.drupal.org/docs/contributed-modules/drupal-symfony-mailer/ge... →

If you don't override, then it uses the same templates exactly as before.

If you do, then the code is like this - which you should already have as the default body in the policy for a simplenews newsletter

        {% if test %}
          <p class="simplenews-test-message">This is a test version of the newsletter.</p>
        {% endif %}

Automatically closed - issue fixed for 2 weeks with no activity.