How to send batch email using Gmail in Java

import java.util.Properties;

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 BatchEmailer {

      public static void main(String[] args) {

            Properties props = System.getProperties();

        props.put("mail.smtp.user", "abc@gmail.com");

        props.put("mail.smtp.password", "12345678");

            props.put("mail.smtp.starttls.enable", "true");

        props.put("mail.smtp.host", "smtp.gmail.com");

        props.put("mail.smtp.port", "587");

        props.put("mail.smtp.auth", "true");

        props.put("mail.stmp.sendpartial", "true");

       

        Session session = Session.getDefaultInstance(props);

            Message message = new MimeMessage(session);

           

            try {

                  message.setFrom(new InternetAddress("abc@gmail.com"));

                  String[] toAddress = new String[] { "aaa@aaa.com", "bbb@bbb.com", "ccc@ccc.com" };

                  for (int i = 0; i < toAddress.length; i++) {

                        InternetAddress address = new InternetAddress(toAddress[i]);

                        message.addRecipient(Message.RecipientType.TO, address);

                  }

                  message.setSubject("Batch Email Testing");

                  message.setText("Batch Email Testing 1 2 3");

                  Transport.send(message);

            } catch (MessagingException e) {

                  e.printStackTrace();

            }

      }

}