Exceptions
============
1) HTML mainbody some times uses RTF syntax to refer to inline attachment. Here is an example of that and note that there are no CID inside HTML stream. Correspondingly there is 'Content-ID' header for inline-attachment.
HTML mainbodypart
=================
img src="objattph://"
Attachment bodypart
====================
Content-Type: image/jpeg; name="Picture (Device Independent Bitmap) 1.jpg"
Content-Description: Picture (Device Independent Bitmap) 1.jpg
Content-Disposition: inline;
filename="Picture (Device Independent Bitmap) 1.jpg";
creation-date="Mon, 17 Jun 2013 18:21:33 GMT";
modification-date="Mon, 17 Jun 2013 18:21:35 GMT"
Content-Transfer-Encoding: base64






