Cara lainnya

$this->load->library('email');
       $config['protocol'] = 'smtp';
       $config['smtp_host'] = 'smtp.elasticemail.com';
       $config['smtp+port'] = '2525';
       $config['smtp_timeout'] = '7';
       $config['smtp_user'] = 'belajarci7@gmail.com';
       $config['smtp_pass'] = '2779e1cbXXXXXXXXXXXXX';
       $config['charset'] = 'utf-8';
       $config['newline'] = '\r\n';
       $config['mailtype'] = 'html';
       $config['validation'] = FALSE;

       $this->email->initialize($config);
       $this->email->from('penerima@gmail.com','Coba');
       $this->email->to('belajarci7@gmail@gmail.com');
       $this->email->subject('Tes email');
       $this->email->message('COBA MASUK TIDAK');

       if(!$this->email->send())
       {
           echo 'BERHASIL';
       }else{
           echo $this->email->print_debugger();
       }