Add fetch function for DSI

club/templates/club/mailing.jinja

@@ -10,7 +10,7 @@
     {% for mailing in object_list %}
     <h2>{% trans %}Mailing{% endtrans %} {{ mailing.email }} 
         {%- if user.is_owner(mailing) -%}
-        <a href="{{ url('club:mailing_delete', mailing_id=mailing.id) }}">{% trans %}Delete{% endtrans %}</a>
+        <a href="{{ url('club:mailing_delete', mailing_id=mailing.id) }}"> - {% trans %}Delete{% endtrans %}</a>
         {%- endif -%}
     </h2>
     <hr>

club/templates/club/mailing_output.jinja

@@ -0,0 +1,3 @@
+{%- for mailing in object_list -%}
+{{ mailing.fetch_format() }}
+{%- endfor -%}