java mail main method implementation

public static String username="z63as"; sender's username
     public static String password="%"; sender's password
     public static String FromAddress = "[email protected]"; sending address (obtained from rs)
     public static String toAddress = "[email protected]"; sending address (obtained from rs)
     public static String subject = "Greetings"; email subject
     public static String content = "hello world" ; email content
     public static void main(String args[])throws Exception{
         JavaMailSenderImpl mailSender=new JavaMailSenderImpl();
         Properties properties=new Properties();
         properties.setProperty("mail.smtp.auth","true");
         properties.put("mail.smtp.host","smtp.126.com");
         mailSender.setJavaMailProperties(properties);
         mailSender.setHost("smtp.126.com");
         mailSender.setPort (25);
         mailSender.setUsername(username);
         mailSender.setPassword(password);
         MimeMessage mimeMessage=mailSender.createMimeMessage();
         MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
         messageHelper.setFrom(FromAddress, "XXX");
         messageHelper.setSubject("Hello world");
         messageHelper.setTo(toAddress);
         messageHelper.setText(content, true);   html: true
 
        mailSender.send(mimeMessage); send mail

   }