JavaMail Get Message for Undelivered Emails (to Gmail or Ymail) - email

Question

I'm trying to build an app to send bulk report emails to many addresses with various hosts. I'm using Javamail and well, I'm still learning it though.
I found an example and try sending emails with my company server as host (let's say xyz company).
here is the sample code
package mailexample;
import javax.mail.*;
import javax.mail.internet.*;
public class MailExample {
public static void send(String smtpHost, int smtpPort,
String from, String to,
String subject, String content) {
try {
java.util.Properties props = new java.util.Properties();
props.put("mail.smtp.host", smtpHost);
props.put("mail.smtp.port", ""+smtpPort);
Session session = Session.getDefaultInstance(props, null);
//Store store = session.getStore();
//Folder folder = store.getFolder("INBOX");
//System.out.println(folder.getMessage(1));
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));
msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
msg.setSubject(subject);
msg.setText(content);
Transport.send(msg);
}
catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
try {
send("mail.xyz.ac", 25, "asdf#xyz.ac", "qwer#xyz.ac",
"title", "content");
}
catch(Exception e) {
e.printStackTrace();
}
}
}
It works fine and I get an error stacktrace when the address is invalid.
But that is only happen if I send an email to the same server/host which is mail.xyz.ac.
If I send an email to some random gmail or ymail addresses (that likely don't exist), my app return success message but nothing happened after that, only a message (like mailer-daemon in gmail) in sender inbox that said it is not delivered.
The problem is, I need to store that message in my database for further notice.
Is it possible to get that message from my app?

Answer 1

The JavaMail FAQ is your friend while learning JavaMail. This entry and this entry address your question. Also, be sure to read the entry about common mistakes.