import javax.mail.*;
import javax.mail.internet.*;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import java.util.Properties;
public class sendMailing{
	private static final String SMTP_HOST_NAME = "smtp.gmail.com";
	private static final String SMTP_AUTH_USER = "username";//Give your gmail id
	private static final String SMTP_AUTH_PWD = "******";give ur gmail  password

	public static void main(String[] args) throws Exception{
		new sendMailing().test();
	}

	public void test() throws Exception{

		Properties props = new Properties();
		props.put("mail.transport.protocol", "smtp");
		props.put("mail.smtp.host", SMTP_HOST_NAME);
		props.put("mail.smtp.port","465");
		props.put("mail.smtp.starttls.enable","true");
		props.put("mail.smtp.auth", "true");
		props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
		props.put("mail.smtp.socketFactory.fallback", "false");
		Authenticator auth = new SMTPAuthenticator();
		Session mailSession = Session.getInstance(props, auth);

		// uncomment for debugging infos to stdout
		mailSession.setDebug(true);
		Transport transport = mailSession.getTransport();
		MimeMessage message = new MimeMessage(mailSession);
		message.setSubject("Test mail");
		message.setContent("Hi" ,"text/plain");
		message.setFrom(new InternetAddress(from));
		message.addRecipient(Message.RecipientType.TO,
		new InternetAddress(to));
		transport.connect();
		transport.sendMessage(message,
		message.getRecipients(Message.RecipientType.TO));
		transport.close();
	}

	private class SMTPAuthenticator extends javax.mail.Authenticator {
		public PasswordAuthentication getPasswordAuthentication() {
			String username = SMTP_AUTH_USER;
			String password = SMTP_AUTH_PWD;
			return new PasswordAuthentication(username, password);
		}
	}
}