Java

public void postMail(String recipients[], String subject, String message, String from) throws MessagingException {
        boolean debug = false;


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

        System.out.println("step 1 ");
        

        Session session = Session.getDefaultInstance(props, null);
        session.setDebug(debug);

        Message msg = new MimeMessage(session);

       InternetAddress addressFrom = new InternetAddress(from);
        msg.setFrom(addressFrom);

        InternetAddress[] addressTo = new InternetAddress[recipients.length];
        for (int i = 0; i < recipients.length; i++) {
            addressTo[i] = new InternetAddress(recipients[i]);
        }
        msg.setRecipients(Message.RecipientType.TO, addressTo);

       msg.addHeader("MyHeaderName", "myHeaderValue");
        msg.setSubject(subject);
        msg.setContent(message, "text/plain");

        Transport.send(msg);
    } 

String [] st = new String[1];
           st[0] = "nuwan";

this.postMail(st, "test", "prasadbuddhika42@gmail.com", "prasadbuddhika42@gmail.com");