/** @see org.esupportail.commons.services.smtp.AbstractSmtpService#test() */
 @Override
 public void test() {
   if (testAddress == null) {
     logger.error(
         "can not test the SMTP connection when property testAddress is not set, "
             + "edit configuration file smtp.xml.");
     return;
   }
   sendDoNotIntercept(
       testAddress, "SMTP test", "<p>This is a <b>test</b>.</p>", "This is a test.");
 }