Verify that mail was sent correctly using JAVA mail

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    Texto = (EditText)findViewById(R.id.mensaje);
    Enviar = (Button)findViewById(R.id.enviar);

    Enviar.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);


            Properties propiedades = new Properties();

            propiedades.put("mail.smtp.host","smtp.googlemail.com");
            propiedades.put("mail.smtp.socketFactory.port","465");
            propiedades.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
            propiedades.put("mail.smtp.auth","true");
            propiedades.put("mail.smtp.port","465");

            try{

                session = Session.getDefaultInstance(propiedades, new Authenticator() {
                    @Override
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(Correo,Contrasena);
                    }
                });

             if (session!=null)
                {
                    Message message = new MimeMessage(session);
                    message.setFrom(new InternetAddress(Correo));
                    message.setSubject("Primera Prueba JAVA Mail");
                    message.setRecipients(Message.RecipientType.TO,InternetAddress.parse("[email protected]"));
                    message.setContent(Texto.getText().toString(),"text/html; charset=utf-8");

                    Transport.send(message);


                }



            }



            catch (Exception e)
                {
                    e.printStackTrace();
                }

        }
    });