codeigniter project, unable to send mails to hotmail mail ids

Question

Mail Sending Issue

codeigniter mail sending working fine for gmail, yahoo, rediff etc.

only codeigniter mail sending is not working during hotmail.

I checked all hotmail a/c settings, even from-mail-id added into safe-mail-list. Though hotmail not receiving mails.

My Mail Config Code:

....
....
$config['protocol'] = 'mail';
$config['smtp_host'] = "localhost";
$config['smtp_port'] = "25";
$config['charset']  = 'utf-8';
$config['wordwrap'] = TRUE;
$config['mailtype'] = 'html';
$config['bcc_batch_mode'] = TRUE;
$config['crlf'] = '\r\n';
$config['newline']  = '\r\n';
$this->email->initialize($config);
$this -> load -> library('email');
....
....

Even I changed..

$config['smtp_port'] = "25";

To..

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

Though its not working..

please suggest me changes to receive emails to hotmail ids also