Creates an uninitialized top-level MIME entity in a document.
Set notesMIMEEntity = notesDocument .CreateMIMEEntity( [ itemName$ ] )
itemName$
String. The name of the item containing the MIME entity. "Body" is the default.
An item created with this method is of type MIME_PART.
To initialize the MIME entity, provide some content and save the containing document.
A MIME entity named "Body" gets special support as a Domino® mail message. In particular, non-Content headers become items in the document. If you specify an item name other than Body, the containing document cannot be mailed.