send email when course fails

rowers/templates/trajectoryfailemail.html

@@ -0,0 +1,22 @@
+{% extends "emailbase.html" %}
+{% block body %}
+<p>Dear <strong>{{ username }}</strong>,</p>
+
+<p>
+  Unfortunately, the course you took did not go through all gates for
+  the virtual challenge.
+  You can check your course versus the gates by clicking on Details
+  in your challenge result.
+  Of course, you can always submit a new row!
+</p>
+
+<p>
+  If you feel that your course should have been valid, or in case
+  you have questions, please
+  contact me by reply to this email.
+</p>
+
+<p>
+  Best Regards, the Rowsandall Team
+</p>
+{% endblock %}