final BodyPart bodyPart = multipart.getBodyPart(i);
                    if (Part.ATTACHMENT.equalsIgnoreCase(bodyPart.getDisposition())) {
                        appendAttachment(buf, bodyPart);
                    } else if (bodyPart.isMimeType("text/plain") || bodyPart.isMimeType("text/html")) {
                        buf.append(bodyPart.getContent().toString()).append(' ');