def METHOD_NAME(self):
    # we only send data that was requested to actually be sent to prevent exploitation
    # of the form as much as possible
    accepted_fields = self.accepted_fields
    form = self.request.form
    values = []
    for field in form.keys():
        if field.strip() not in accepted_fields:
            continue
        values.append("{}: {}".format(field, form[field]))
    return "\n".join(values)