Help with Email Class

PHP Code:

$config['protocol']    = 'smtp';
$config['smtp_host']    = '****';
$config['smtp_port']    = '25';
$config['smtp_timeout'] = '7';
$config['smtp_user']    = '*****';
$config['smtp_pass']    = '****';
$config['charset']    = 'utf-8';
$config['newline']    = "\r\n";
$config['mailtype'] = 'html';
$config['validation'] = FALSE;
$this->email->initialize($config); 


i use those settings with no problems !  check those and let me know