We tried to use NotesMIMEEntity to send some "pretty" (well at least prettier
than what Notes can do) emails with attachments. However, we had some problems
including the attachments (they didn't send to users outside the Domino server)
and finally gave up, as prettiness wasn't really that necessary for our app.
It might have been our mistake, or a bug in an older version of Domino 7.0.x,
but I'm curious as to wether you have managed to include attachments with those