Java EE (Java Enterprise Edition) General Discussion

Hi when I try to send a simple java mail using the below code I get the following exception.

import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
import java.io.UnsupportedEncodingException;

public class MailExample
{
    public static void main(String args[])
    {
        String host = "smtp.rediffmail.com";
        String from = "abc@rediffmail.com";
        String to = "abc@rediffmail.com";

        try
        {
            // Get system properties
            Properties props = System.getProperties();

            // Setup mail server
            Authenticator auth = new PopupAuthenticator();
            props.put("mail.smtp.host", host);
            props.put("mail.smtp.port", "" + 25);
            props.put("mail.smtp.auth", "true");

            Session session = Session.getInstance(props, auth);
            session.setDebug(true);

            MimeMessage message = new MimeMessage(session);

            message.setFrom(new InternetAddress(from, "FromName"));

            message.addRecipient(Message.RecipientType.TO,
                new InternetAddress(to, "ToName"));

            message.setSubject("Hello JavaMail");

            message.setText("Welcome to JavaMail");

            Transport.send(message);
            System.out.println("Mail Sent");
        }
        catch (MessagingException e)
        {
            e.printStackTrace();
        }
        catch (UnsupportedEncodingException e)
        {
            e.printStackTrace();
        }
    }

    static class PopupAuthenticator extends Authenticator
    {
        public PasswordAuthentication getPasswordAuthentication()
        {
            return new PasswordAuthentication("abc@rediffmail.com",
                "password");
        }
    }
}

DEBUG: setDebug: JavaMail version 1.3.3
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.rediffmail.com", port 25, isSSL false
220 webmail39.rediffmail.com ESMTP
DEBUG SMTP: connected to host "smtp.rediffmail.com", port: 25

EHLO srirampv
250-webmail39.rediffmail.com
250 8BITMIME
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: use8bit false
MAIL FROM:<abc@rediffmail.com>
250 ok
RCPT TO:<abc@rediffmail.com>
421 Authorization failed: please authenticate by doing get message first
DEBUG SMTP: Valid Unsent Addresses
DEBUG SMTP:   ToName <abc@rediffmail.com>
DEBUG SMTP: Sending failed because of invalid destination addresses
RSET
250 flushed
javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
	class com.sun.mail.smtp.SMTPAddressFailedException: 421 Authorization failed: please authenticate by doing get message first

	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1141)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:536)
	at javax.mail.Transport.send0(Transport.java:151)
	at javax.mail.Transport.send(Transport.java:80)
	at MailExample.main(MailExample.java:39)
QUIT
javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
	class com.sun.mail.smtp.SMTPAddressFailedException: 421 Authorization failed: please authenticate by doing get message first

	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1141)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:536)
	at javax.mail.Transport.send0(Transport.java:151)
	at javax.mail.Transport.send(Transport.java:80)
	at MailExample.main(MailExample.java:39)

I have replaced my actual email address with abc@rediffmail.com .Please help.