java發送mail郵件變成垃圾郵件解決辦法

MimeMessage msg = new MimeMessage(session);
// 防止郵件變成垃圾郵件被攔截
msg.addHeader("X-Mailer","Microsoft Outlook Express 6.00.2900.2869");
// 設置發件人
msg.setFrom(new InternetAddress(sendForm));
// 設置收件人
msg.setRecipient(Message.RecipientType.TO, new InternetAddress(receive));
msg.setSubject("xxxxxxxxxx");