Content-Type header at the beginning of a feedback email

The following line is present at the beginning of feedback emails : Content-Type: text/html; charset=utf-8 This should not be displayed. The difference with other methods that sent emails in askbot seems to be the usage of the method render_to_response instead of render to generate the body. Here is a usefull link [http://stackoverflow.com/questions/5523107/djangos-nested-render-to-response-always-show-content-type](http://stackoverflow.com/questions/5523107/djangos-nested-render-to-response-always-show-content-type)