kirim email mengunakan codeigniter

  stat = "SUCCESS";
						$result = array($response);
						$date_create_token = date('Y-m-d H:i:s');
						$tokenstring = md5(time() . mt_rand(1,1000000)) . CRC32(time() . mt_rand(1,1000000).$date_create_token);
						$links = site_url("v1/user/reset/token/".$tokenstring);
						$email_user =$params['email_user'];

						$this->load->library('email');
						$config = array();
						$config['charset'] = 'utf-8';
						$config['useragent'] = 'Codeigniter';
						$config['protocol']= "smtp";
						$config['mailtype']= "html";
						$config['smtp_host']= "ssl://smtp.gmail.com";//pengaturan smtp
						$config['smtp_port']= "465";
						$config['smtp_timeout']= "400";
						$config['smtp_user']= "test@gmail.com"; // isi dengan email kamu
						$config['smtp_pass']= "test"; // isi dengan password kamu
						$config['crlf']="\r\n";
						$config['newline']="\r\n";
						$config['wordwrap'] = TRUE;
						$this->email->initialize($config);
						//konfigurasi pengiriman
						$this->email->from($config['smtp_user']);
						$this->email->to($email_user);
						$this->email->subject("Konfirmasi E-Mail Anda");
						$this->email->message("Token ini berlaku untuk 2 jam dari pengiriman token ini: Klik disini untuk reset password anda : <a href='$links' style='background-color: #ff5722; border-collapse: separate; border-top: 20px solid #ff5722; border-right: 20px solid #ff5722; border-bottom: 20px solid #ff5722; border-left: 20px solid #ff5722; border-radius: 3px; color: #FFFFFF; display: inline-block; font-family: Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 600; letter-spacing: .3px; text-decoration: none' target='_blank' rel='noreferrer'>Reset Password</a>");

itu kenapa engga terkirim emailnya ya?