can't sending smtp emails with codeigniter - codeigniter

Question

my codeigniter framework wont send emails by smtp. I always return a error that he cannot send the my by smtp over php on this server. If i check my username, host and password by copy and past to login with a webclient into the mailbox, it workds. So i use the correct host, username and password.
I think i have setup something wrong, but i dont know what.
Thats the email_helper
$config['mailpath'] = "/usr/bin/sendmail"; // or "/usr/sbin/sendmail"
$config['protocol'] = "smtp";
$config['smtp_host'] = $settings['smtp_host']; (smtp.domain.com)
$config['smtp_port'] = $settings['smtp_port']; (465)
$config['smtp_timeout'] = '30';
$config['smtp_user'] = $settings['smtp_user']; (email = user)
$config['smtp_pass'] = $settings['smtp_pass']; (my password)
$config['mailtype'] = 'html';
$config['charset'] = 'utf-8';
$config['newline'] = "\r\n";
$config['wordwrap'] = TRUE;
$controller->load->library('email');
$controller->email->initialize($config);
$controller->email->from( $settings['email_from'] , $settings['application_name'] );
$controller->email->to($to);
$controller->email->subject($subject);
$controller->email->message($body);
if($cc != '')
{
$controller->email->cc($cc);
}
if($attachment != '')
{
$controller->email->attach(base_url()."your_file_path/" .$attachment);
}
if($controller->email->send()){
return "success";
}
else
{
echo $controller->email->print_debugger();
}
}
I've chekced the correct values from the $settings array, too.
To send the email i do it in this way
$this->mailer->mail_template($to,'forget-password',$mail_data);

Answer 1

Adding the ssl information solved the problem
$config['smtp_crypto'] = 'ssl';