Codeigniter email sending with gmail smtp with codeigniter email library

class email1 extends MY_Controller {

    function __construct()
    {
        parent::__construct();
    }
    function index()
    {
        //$this->load->view('temp/templatesec');
                    $this->load->library('email');

            $config['protocol']    = 'smtp';

            $config['smtp_host']    = 'ssl://smtp.gmail.com';

            $config['smtp_port']    = '465';

            $config['smtp_timeout'] = '7';

            $config['smtp_user']    = '1515shashitest187@gmail.com';

            $config['smtp_pass']    = 'xxxxxxxxxx';

            $config['charset']    = 'utf-8';

            $config['newline']    = "\r\n";

            $config['mailtype'] = 'text'; // or html

            $config['validation'] = TRUE; // bool whether to validate email or not     

            $this->email->initialize($config);


            $this->email->from('1515shashitest187@gmail.com', 'shashi test');
            $this->email->to('1515shashitest187@gmail.com');


            $this->email->subject('Email Test');

            $this->email->message('Testing the email class.'); 

            $this->email->send();

            echo $this->email->print_debugger();

    }
}
?>