email.php

<?php

class Email extends Controller {

    function index()
    {
        $this->load->library('email');

        $config['protocol'] = "smtp";
        $config['smtp_host'] = "smtp.mailserver.net";
        $config['smtp_port'] = "25";
        $config['smtp_user'] = "kalkun@mailserver.net";
        $config['smtp_pass'] = "Password";
        $config['charset'] = 'utf-8';
        $config['wordwrap'] = TRUE;

        $this->email->initialize($config);
        $this->email->from("kalkun@mailserver.net", 'Your Name');
        $this->email->to('someone@example.com'); 
        $this->email->subject('Email Test');
        $this->email->message('Testing the email class.');  
        $this->email->send();

        echo $this->email->print_debugger();
    }

}