如何使用 Javax.mail.Transport 注册 Trasport 侦听器以听取 email 从 email 服务器发送的状态

Question

I am trying to capture email status from email server, For that I have configured TransportListener. But the TransportListener event not triggered after sending email using Transport.send(). I came to know Transport.send() will create new instance but we need to register Transport instance with TransportListener. I did not find the way how to register Transport instance with TransportListener to trigger the methods messageDelivered(), messageNotDelivered() of TransportListener.

Can any one please suggest how I can register my Transport with TransportListener to know the status of my emails from email server.

==Below code snippet to capture delivery status code from mail server====

SMTPTransport transport = (SMTPTransport)session.getTransport("smtp");





        transport.connect("host","Port","Username","password");

        transport.sendMessage(message, message.getAllRecipients());
        //transport.simpleCommand(cmd);
        String response = transport.getLastServerResponse();
        boolean s = transport.getReportSuccess();
        int code = transport.getLastReturnCode();
        System.out.println("response is:" + response);
        System.out.println("report is:" + s);
        System.out.println("Code is:" + code);
        transport.close();

Answer 1

Note that TransportListener will only tell you if your mail server rejects your message, which is that same information you get from an except from Transport.send. If you want to know whether the message was ultimately delivered to the recipient, you need to learn about Delivery Status Notifications, but see this JavaMail FAQ entry .

Answer 2

You can add transport listener to get back the status

        transport.addTransportListener(new TransportListener() {
        @Override
        public void messagePartiallyDelivered(TransportEvent e) {
            // TODO Auto-generated method stub
        }
        
        @Override
        public void messageNotDelivered(TransportEvent e) {
            // TODO Auto-generated method stub
        }
        
        @Override
        public void messageDelivered(TransportEvent e) {
            // TODO Auto-generated method stub
        }
    });
     transport.connect(smtpServer, port, userid, password);