Okay, perhaps it's time to back up a bit. First, make sure your email really is being sent as MIME, and not as rich text. How are you generating and sending the email? Are you sending it from a notes agent? If so, are you setting the content-type?
Also, try checking the document properties of the email in question (from Notes). What is the type of the Body field? If it's rich text, then (assuming it started out as mime) somewhere your email is being converted from mime to rich text. This could be because there's a server somewhere in your organization that is still using R4 to route mail.
Here's an excellent
tech note that has more detail. Also, since I don't think this issue is
java related, you might want to post over on
notes.net instead of here (although I'm happy to continue helping you if I can).
Good luck!
[ June 17, 2005: Message edited by: Kristin Stromberg ]