Email

$this->load->library('email');
                $config['protocol'] = 'smtp';
                $config['smtp_host'] = 'tokoaplus.com';
                $config['smtp_port'] = '26';
                $config['smtp_user'] = 'marketing@tokoaplus.com';
                $config['smtp_pass'] = 'tokoaplus';
                $config['charset']='utf-8';
                $this->email->set_mailtype("html");

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

                function anti_injection($data)
                {
                    $filter = stripslashes(strip_tags(htmlspecialchars($data,ENT_QUOTES)));
                    return $filter;
                }

                $sender_email = 'marketing@tokoaplus.com';
                $sender_name = 'KPPT Kudus';
                $name = anti_injection(trim($this->input->post('name')));
                $email = anti_injection(trim($this->input->post('email')));

                $kode_aktivasi = md5(uniqid(rand()));
                $subject = "Activation Account";
                $message = "Selamat Datang : ".$name."<br> Silahkan Klik Link Berikut untuk Aktivasi Akun Anda : http://kppt.hotelhomkudus.com/aktivasi/kode/".$kode_aktivasi;

                $this->email->from($sender_email, $sender_name);
                $this->email->to($email);
                $this->email->subject($subject);
                $this->email->message($message);
                $this->email->send();