'Poisoned HTTP_HOST headers can\'t be used for reset emails'

@override_settings(DEBUG_PROPAGATE_EXCEPTIONS=True)
def test_poisoned_http_host(self):

    with self.assertRaises(SuspiciousOperation):
        self.client.post('/password_reset/', {'email': 'staffmember@example.com'}, HTTP_HOST='www.example:dr.frankenstein@evil.tld')
    self.assertEqual(len(mail.outbox), 0)
