Unable to Send Email , Codeigniter, Network solution , SMTP

I am Using Codeigniter for a website hosted in Network Solution, And is not able to send email my email config page is

 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
        /*
        | -------------------------------------------------------------------
        | EMAIL CONFING
        | -------------------------------------------------------------------
        | Configuration of outgoing mail server.
        | */
    $config['protocol']=开发者_JS百科'smtp';
    $config['smtp_host']='hostname';
    $config['smtp_port']='587';
    $config['smtp_timeout']='80';
    $config['smtp_user']='user';
    $config['smtp_pass']='password';
    $config['_smtp_auth']=TRUE;
    $config['charset']='utf-8';
    $config['newline']="\r\n";
    /* End of file email.php */
    /* Location: ./system/application/config/email.php */  

In Outlook i had to check My outgoing server requires authentication for that email address. Any Help would be appreciated.

Well, I got it, I had to put localhost as the hostname in email.php on the server, and then it worked. (may be it'll help some other people too...)