Question mail program

package info.G2E;

import java.util.Properties;

import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendEmail {
	public static void main(String[] args) {
		String to = "chalam.gd@gmail.com";
		String from = "seshu.khs@gmail.com";
		String host = "smtp.gmail.com";
		// get the session object

		Properties properties = System.getProperties();
		properties.setProperty("mail.smtp.host", host);
		properties.setProperty("mail.user", "chalam.gd@gmail.com");
		properties.setProperty("mail.password", "tendulkar");
		properties.setProperty("mail.port", "530");
		properties.setProperty("mail.transport.protocol", "smtps");
		properties.setProperty("mail.transport.protocol", "smtps");
		properties.setProperty("mail.smtp.ssl.enable", "true");
		properties.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
				
		Session session = Session.getDefaultInstance(properties);

		// compose the message

		try {
			MimeMessage message = new MimeMessage(session);
			message.setFrom(new InternetAddress(from));
			message.addRecipient(Message.RecipientType.TO,
					new InternetAddress(to));
			message.setSubject("ping");
			message.setText("Welcome wonderful MailMessageSystem");

			// send message
			 	Transport.send(message);
			System.out.print("message sent successfully..");

		} catch (MessagingException mex) {
			mex.printStackTrace();
		}

	}

	@SuppressWarnings("unused")
	private static MimeMessage newMimeMessage(Session session) {
		// TODO Auto-generated method stub
		return null;
	}

	@SuppressWarnings("unused")
	private static Address newInternetAddress(String to) {
		// TODO Auto-generated method stub
		return null;
	}

}

InConsole:
javax.mail.MessagingException: Exception reading response;
  nested exception is:
	javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
	at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:1462)
	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1260)
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
	at javax.mail.Service.connect(Service.java:275)
	at javax.mail.Service.connect(Service.java:156)
	at javax.mail.Service.connect(Service.java:105)
	at javax.mail.Transport.send0(Transport.java:168)
	at javax.mail.Transport.send(Transport.java:98)
	at info.G2E.SendEmail.main(SendEmail.java:43)
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
	at sun.security.ssl.InputRecord.handleUnknownRecord(Unknown Source)
	at sun.security.ssl.InputRecord.read(Unknown Source)
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source)
	at sun.security.ssl.AppInputStream.read(Unknown Source)
	at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:97)
	at java.io.BufferedInputStream.fill(Unknown Source)
	at java.io.BufferedInputStream.read(Unknown Source)
	at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:75)
	at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:1440)
	... 8 more