Help sending e-mail

Question

Hi there,
I am having a problem like alot of people have had when sending e-mail to a smtp server.
The below program is the my SMTP client.
When sending an e-mail to my own ISP's server smtp.homechoice.co.uk, with my allocated e-mail address from them, this works fine proving that I can send an e-mail to myself.
However if I enter in another e-mail address at another domain like [email protected], I get the below error:
Is this some kind of authentication issue?
javax.mail.SendFailedException: Sending failed;
nested exception is:
class javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
class javax.mail.SendFailedException: 553 sorry, that domain isn't in my
list of allowed rcpthosts (#5.7.1)
at javax.mail.Transport.send0(Transport.java:218)
at javax.mail.Transport.send(Transport.java:80)
at MessengerFrame$3.run(MessengerFrame.java:1599)
at java.lang.Thread.run(Thread.java:534)
public class SMTPClient extends JFrame
     private JButton sendButton = new JButton("Send Message");
     private JLabel fromLabel = new JLabel("From: ");
     private JLabel toLabel = new JLabel("To: ");
     private JLabel hostLabel = new JLabel("SMTP Server: ");
     private JLabel subjectLabel = new JLabel("SMTP Server: ");
     private JTextField fromField = new JTextField(40);
     private JTextField toField = new JTextField(40);
     private JTextField hostField = new JTextField(40);
     private JTextField subjectField = new JTextField(40);
     private JTextArea message = new JTextArea (10, 72);
     private JScrollPane jsp = new JScrollPane(message);
     public SMTPClient()
          super("SMTP CLient");
          Container contentPane = this.getContentPane();
          contentPane.setLayout(new BorderLayout());
          JPanel labels = new JPanel();
          labels.setLayout(new GridLayout(4,1));
          labels.add(hostLabel);
          JPanel fields = new JPanel();
          fields.setLayout(new GridLayout(4,1));
          String host = System.getProperty("mail.host", "");
          hostField.setText(host);
          fields.add(hostField);
          labels.add(toLabel);
          fields.add(toField);
          String from = System.getProperty("mail.from", "");
          fromField.setText(from);
          labels.add(fromLabel);
          fields.add(fromField);
          Box north = Box.createHorizontalBox();
          north.add(labels);
          north.add(fields);
          contentPane.add(north, BorderLayout.NORTH);
          message.setFont(new Font("Monospaced", Font.PLAIN, 12));
          contentPane.add(jsp, BorderLayout.CENTER);
          JPanel south = new JPanel();
          south.setLayout(new FlowLayout(FlowLayout.CENTER));
          south.add(sendButton);
          sendButton.addActionListener(new SendAction());
          contentPane.add(south, BorderLayout.SOUTH);
          this.pack();
          //add(pane);
     class SendAction implements ActionListener
          public void actionPerformed(ActionEvent evt)
               try
                    Properties props = new Properties();
                    props.put("mail.host", hostField.getText());
                    Session mailConnection = Session.getInstance(props, null );
                    //Store store = mailConnection.getStore(provider);
                    //store.connect(host, username, password);
                    final Message msg = new MimeMessage(mailConnection);
                    Address to = new InternetAddress(toField.getText());
                    Address from = new InternetAddress(fromField.getText());
                    msg.setContent(message.getText(), "text/plain");
                    msg.setFrom(from);
                    msg.setRecipient(Message.RecipientType.TO, to);
                    msg.setSubject(subjectField.getText());
                    Runnable r = new Runnable()
                         public void run()
                              try
                                   Transport.send(msg);
                              catch (Exception e)
                                   e.printStackTrace();
                    Thread t = new Thread(r);
                    t.start();
                    message.setText("");
               catch (Exception e)
                    e.printStackTrace();
}

Answer 1

Hi,
i m a new programmer in java. I just started programming. Please help me to send a mail through java
How can i get a smtp server. I have windows xp and using jdk1.4
since u have send mail at least to ur addres. U can help me .
Hope u will be a good tutor to me.
Bye
Binoy Debnath.
mail me in
[email protected]
[email protected]