New Lines In Message Not Showing Up

PHP Code:

$this->load->library('email');
$this->load->model('catalog/account/register_model');


$this->email->from('********', 'Admin');
$this->email->to($this->input->post('email')); 
$this->email->subject('Customer Activation');

$key =  md5(microtime().rand());

$message = "Thank you for creating a free account!";
$message .= "\r\n";
$message .= "Click on link to validate your email";
$message .= "\r\n";
$message .= anchor('account/register/validated/' . $key, 'Click Here To Validate Email');
$this->email->message($message);

if ($this->register_model->create_temp_account($key)) {

$this->email->send();

$data['success'] = '';

$data['header'] = Modules::run('catalog/common/header/index');
$data['footer'] = Modules::run('catalog/common/footer/index');

$this->load->view('account/register_view', $data);

}

PHP Code:

<?php

$config['smtp_host'] = 'ssl://smtp.gmail.com';
$config['smtp_port'] = 465;
$config['smtp_user'] = '****';
$config['smtp_pass'] = '****';
$config['protocol']  = 'smtp';
$config['validate']  = true;
$config['mailtype']  = 'html';
$config['charset']   = 'utf-8';
$config['newline']   = "\r\n";