/**
  * Given a hostname, what ports should we test?
  *
  * May return an array of several combinations.
  */
 public function getSocketsForSetupWizardToProbe($hostname, $smtpServerGuess)
 {
     $hosts = array();
     if ($smtpServerGuess == null || PostmanUtils::isGoogle($smtpServerGuess)) {
         array_push($hosts, parent::createSocketDefinition($this->getHostname(), $this->getPort()));
     }
     return $hosts;
 }