title: I can't get line returns in CodeIgniter plain text email messages
body: <p>I've been struggling with this one.  No matter what I do, I cannot get new lines, empty lines, or line returns to show up in any email message I generate with CodeIgniter (v 2.1.3).</p>
  
  <p>Within my <strong>Controller function</strong>:</p>
  
  <pre><code>$message = "Line one.\r\n\r\n" .
  "Line two.\r\n\r\n" .
  "Line three.\r\n\r\n";
  
  $subject = "My Subject Line";
  
  $this-&gt;load-&gt;library('email');                  
  $config['newline'] = "\r\n";  // does not matter when I leave this out
  $config['crlf'] = "\r\n";     // does not matter when I leave this out
  $this-&gt;email-&gt;initialize($config);              
  $this-&gt;email-&gt;from('system@mydomain.com', 'my system');
  $this-&gt;email-&gt;to('me@gmail.com');               
  $this-&gt;email-&gt;subject($subject);
  $this-&gt;email-&gt;message($message);                
  $this-&gt;email-&gt;send();               
  echo $this-&gt;email-&gt;print_debugger();
  </code></pre>
  
  <p>I've changed no settings or defaults, other than what I've shown above.</p>
  
  <p>The "source" of the message looks just like this <code>print_debugger()</code> output...</p>
  
  <pre><code>User-Agent: CodeIgniter
  Date: Sun, 24 Mar 2013 17:46:47 -0400
  From: "my system" 
  Return-Path: 
  Reply-To: "system@mydomain.com" 
  X-Sender: system@mydomain.com
  X-Mailer: CodeIgniter
  X-Priority: 3 (Normal)
  Message-ID: &lt;xxxxxx@mydomain.com&gt;
  Mime-Version: 1.0
  Content-Type: multipart/alternative; boundary="B_ALT_514f74472bd26" 
  
  =?utf-8?Q?My_Subject_Line?=
  This is a multi-part message in MIME format.
  Your email application may not support this format.
  
  --B_ALT_514f74472bd26
  Content-Type: text/plain; charset=utf-8
  Content-Transfer-Encoding: 8bit
  
  Line one.
  
  Line two.
  
  Line three.
  
  --B_ALT_514f74472bd26
  Content-Type: text/html; charset=utf-8
  Content-Transfer-Encoding: quoted-printable
  
  Line one.
  
  Line two.
  
  Line three.
  
  --B_ALT_514f74472bd26--
  </code></pre>
  
  <p><strong>HOWEVER</strong>, the problem is that the actual message is rendering in all email clients as the following.</p>
  
  <pre><code>Line one.Line two.Line three.
  </code></pre>
  
  <p>Why are my <code>"\r\n"</code> being ignored?</p>
  
  <p>This is a very simple message and I'd prefer to not have to use any <code>html</code> options.  <a href="http://ellislab.com/codeigniter/user-guide/libraries/email.html" rel="nofollow">As per CI documentation</a>, the <code>mailtype</code> preference should be defaulting to <code>text</code>.</p>
  
  <p>Where am I going wrong here?</p>