PHP - PHP MAILER ERROR

$mail->SMTPDebug = 2; //poner 0 si funciona

        $mail->isSMTP();

        $mail->Host       = $smtpserver;

        $mail->SMTPAuth   = false;

        $mail->SMTPSecure = false;

        $mail->Username   = $usuario;

        $mail->Password   = $palpaso;

        $mail->Port       = 25;

        $mail->SMTPOptions = array(

                        'ssl' => array(

                        'verify_peer' => false,

                        'verify_peer_name' => false,

                        'allow_self_signed' => true

                        ));

        $mail->setFrom($usuario, 'Nombre de Usuario');

        $mail->addAddress($email,$nombre);

        $mail->addBCC($email_bcc,$nombre_bcc);

        $mail->isHTML(true);

require_once('class.phpmailer.php');

$mail = new PHPMailer;

//Enable SMTP debugging.

$mail->From = $from_mail;

$mail->FromName = $name_emailfrom;

$mail->Subject = $asunto;

$mail->AddAddress($to_mail,$to_name);

$mostrar_debug=false; // Activar si se necesita analizar detalles de respuesta del servidor

if($mostrar_debug===true){

    $mail->SMTPDebug = 3;

}

//Set PHPMailer to use SMTP.

$mail->isSMTP();

//Set SMTP host name                          

$mail->Host = "xxxxxxxx.com.mx";//Oculte mi dominio

//Set this to true if SMTP host requires authentication to send email

$mail->SMTPAuth = true;

//Provide username and password     

$mail->Username = $from_mail;

$mail->Password = "***********";//Oculte mi passwd por razones obvias                     

//If SMTP requires TLS encryption then set it

$mail->SMTPSecure = "";

//Set TCP port to connect to 

$mail->Port = 587;

$body = $textmessage;

$mail->Body = $body;

$mail->Send();

// Notificamos al usuario del estado del mensaje

if(!$mail->Send()){

    return false;

}else{

    return true;

}

echo $mail->ErrorInfo;