Hi {{ job.user.get_full_name|default:job.user.username }}.

Just a quick note to say that the import of file {{ job.name }} was a success.{% if warnings.count > 0 %}  
There were however one or more warnings:
{% for warning in warnings %}
- {{ warning.text }}{% if warning.description %}  
  {{ warning.description }}{% endif %}{% endfor %}
{% endif %}