BodyPart att0 = createTextBody("This is the first part of the template..", "plain", true);
multipart.addBodyPart(att0);
BodyPart att1 = createRandomBinaryAttachment(200);
multipart.addBodyPart(att1);
BodyPart att2 = createRandomBinaryAttachment(300);
multipart.addBodyPart(att2);
BodyPart att3 = createTextBody("Some sample text here...?!", "html", true);
multipart.addBodyPart(att3);
BodyPart att4 = createRandomBinaryAttachment(100);
multipart.addBodyPart(att4);
BodyPart att5 = createTextBody("Some other text here...?!", "plain", true);