Want to get the failure delivery message

Question

import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
public class ReplyExample {
     public static void main (String args[]) throws Exception {
String host = "127.0.0.1";
String from = "[email protected]";
String to = "[email protected]";
String reply = "[email protected]";
// Get system properties
Properties props = System.getProperties();
// Setup mail server
props.put("mail.smtp.host", host);
// Get session
Session session = Session.getInstance(props, null);
// Define message
MimeMessage message = new MimeMessage(session);
     message.setFrom(new InternetAddress(from));
     message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
     message.setReplyTo(new InternetAddress[]{new InternetAddress(reply)});
     message.setSubject("Hello JavaMail");
message.setText("Welcome to JavaMail");
// Send message
Transport.send(message);
Why i am not getting the failure delivery message?

Answer 1

If the above mentioned code is wrong then kindly let me know to the exact code.
Waiting for your quick responce.