Помогите добавить функцию sleep(2); чтоб была задержка между отправками сообщений, при вызове этой функции.

Software: PHPMailer - PHP email class , class.phpmailer.php

  function Send() {
    $header = '';
    $body = '';
    $result = true;

    if((count($this->to) + count($this->cc) + count($this->bcc)) < 1) {
      $this->SetError($this->Lang('provide_address'));
      return false;
    }

    /* Set whether the message is multipart/alternative */
    if(!empty($this->AltBody)) {
      $this->ContentType = 'multipart/alternative';
    }

    $this->error_count = 0; // reset errors
    $this->SetMessageType();
    $header .= $this->CreateHeader();
    $body = $this->CreateBody();

    if($body == '') {
      return false;
    }

    /* Choose the mailer */
    switch($this->Mailer) {
      case 'sendmail':
        $result = $this->SendmailSend($header, $body);
        break;
      case 'smtp':
        $result = $this->SmtpSend($header, $body);
        break;
      case 'mail':
        $result = $this->MailSend($header, $body);
        break;
      default:
        $result = $this->MailSend($header, $body);
        break;
        //$this->SetError($this->Mailer . $this->Lang('mailer_not_supported'));
        //$result = false;
        //break;
    }

    return $result;
  }