docbow/docbow_project/docbow/templates/docbow/inbox_delete_column.html

{% load i18n %}
<form action="{% url 'inbox-message-delete' mailbox_id=record.id %}"
      method="post">
  {% csrf_token %}
  <input type="image" src="{{ STATIC_URL }}/docbow/css/images/poubelle.png" alt="{% trans "Delete" %}"/>
</form>