messageBodyPart = new MimeBodyPart();
DataHandler dh = new DataHandler(originalMessage, "message/rfc822");
messageBodyPart.setDataHandler(dh);
multipart.addBodyPart(messageBodyPart);
newMessage.setContent(multipart);
DataHandler dh = new DataHandler(originalMessage, "message/rfc822");
messageBodyPart.setDataHandler(dh);
multipart.addBodyPart(messageBodyPart);
newMessage.setContent(multipart);
Set the content of it as the attachment
Create a MimeMultipart object
Add The MimeBodyPart to the MimeMultipart object
Send it the usual way