sb.append("</multipart>\r\n");
} else if (e.getBody() instanceof Message) {
sb.append(getStructure((Message) e.getBody(), prefix, id + "_1"));
} else {
Body b = e.getBody();
String name = prefix + "_decoded_" + id
+ (b instanceof TextBody ? ".txt" : ".bin");
String tag = b instanceof TextBody ? "text-body" : "binary-body";
sb.append("<" + tag + " name=\"" + name + "\"/>\r\n");