jumpserver/apps/tickets/templates/tickets/_msg_ticket.html

{% load i18n %}
<div>
    <p>
        {{ title | safe }}
    </p>
    <div>
        {{ body | safe }}
    </div>
    <br>
    <div>
        <a href="{{ ticket_detail_url }}" target="_blank">
            {% trans 'Click here to review' %}
        </a>
    </div>
</div>