/**
  * Send a test email from user.  Can use to determine if the SMTP settings are configured correctly.
  * @param EmailHelper $emailHelper
  * @param User $userToSendMessagesFrom
  * @param string $toAddress
  */
 public static function sendTestEmailFromUser(EmailHelper $emailHelper, User $userToSendMessagesFrom, $toAddress)
 {
     $from = array('address' => $emailHelper->resolveFromAddressByUser($userToSendMessagesFrom), 'name' => strval($userToSendMessagesFrom));
     $emailMessage = static::sendTestEmail($emailHelper, $from, $toAddress);
     return $emailMessage;
 }