title: Is it possible to embed an inline image in HTML email using MFMailComposeViewController?
body: <p>Is it possible to embed a reference to an image in an HTML email sent via MFMailComposeViewController on iPhone OS 3.0?</p>
  
  <pre><code>(void)addAttachmentData:(NSData*)attachment mimeType:(NSString*)mimeType fileName:(NSString*)filename
  </code></pre>
  
  <p>doesn't seem to provide any way of either setting or reading the Content-ID header for an attachment, but is there some way to make this work?</p>
  
  <p>I have seen apps that do this, but they're probably using SKPSMTPMessage...</p>