C:\wamp64\www\VisualizaVRv0.9\backend\testemail2.php:298:
object(PHPMailer\PHPMailer\Exception)[4]
  protected 'message' => string 'The following From address failed: halberscdeveloper@gmail.com : MAIL FROM command failed,Mail relay denied [67.225.176.129]. Invalid credentials for relay for
one of the domains in:  (as obtained from HELO and MAIL FROM).
 Email is being sent from a domain or IP address which isn't
registered in your Workspace account. Please login to your Workspace
account and verify that your sending device IP address has been
registered within the Workspace SMTP Relay Settings. For more
information, go to
 https:'... (length=1233)
  private 'string' (Exception) => string '' (length=0)
  protected 'code' => int 2
  protected 'file' => string 'C:\wamp64\www\VisualizaVRv0.9\backend\PHPMailer\vendor\phpmailer\phpmailer\src\PHPMailer.php' (length=92)
  protected 'line' => int 1868
  private 'trace' (Exception) => 
    array (size=3)
      0 => 
        array (size=6)
          'file' => string 'C:\wamp64\www\VisualizaVRv0.9\backend\PHPMailer\vendor\phpmailer\phpmailer\src\PHPMailer.php' (length=92)
          'line' => int 1600
          'function' => string 'smtpSend' (length=8)
          'class' => string 'PHPMailer\PHPMailer\PHPMailer' (length=29)
          'type' => string '->' (length=2)
          'args' => 
            array (size=2)
              ...
      1 => 
        array (size=6)
          'file' => string 'C:\wamp64\www\VisualizaVRv0.9\backend\PHPMailer\vendor\phpmailer\phpmailer\src\PHPMailer.php' (length=92)
          'line' => int 1436
          'function' => string 'postSend' (length=8)
          'class' => string 'PHPMailer\PHPMailer\PHPMailer' (length=29)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      2 => 
        array (size=6)
          'file' => string 'C:\wamp64\www\VisualizaVRv0.9\backend\testemail2.php' (length=52)
          'line' => int 295
          'function' => string 'send' (length=4)
          'class' => string 'PHPMailer\PHPMailer\PHPMailer' (length=29)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
  private 'previous' (Exception) => null
  public 'xdebug_message' => string '<tr><th align='left' bgcolor='#f57900' colspan="5"><span style='background-color: #cc0000; color: #fce94f; font-size: x-large;'>( ! )</span> PHPMailer\PHPMailer\Exception: The following From address failed: halberscdeveloper@gmail.com : MAIL FROM command failed,Mail relay denied [67.225.176.129]. Invalid credentials for relay for
one of the domains in:  (as obtained from HELO and MAIL FROM).
 Email is being sent from a domain or IP address which isn't
registered in your Workspace account. Please login to'... (length=2474)