{% load i18n %}
{% blocktrans with site_name=site.name %}
The following user ({{ user }}) has asked to register an account at
{{ site_name }}.  
{% endblocktrans %}
{% blocktrans %}
To approve this, please click the following link.
{% endblocktrans %}

http://{{site.domain}}{% url 'registration_admin_approve' profile_id %}