Java Mail over TLS

Question

    final String username = "XXXXXX";
    final String password = "XXXXX"; 
    Properties props = new Properties();
    props.put("mail.transport.protocol", "smtp");
    props.put("mail.smtp.starttls.enable","true");
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.host", "mail.xxxx.com");
    props.put("mail.smtp.port", "587");

    Session session = Session.getInstance(props,
            new javax.mail.Authenticator() {
              protected PasswordAuthentication getPasswordAuthentication() {
                  return new PasswordAuthentication(username, password);
              }
            });

    Message message = new MimeMessage(session);
    message.setFrom(new InternetAddress("[e-mail]"));
    message.setRecipients(Message.RecipientType.TO,
        InternetAddress.parse(to_address));
    message.setSubject("Test Mail"); 
    message.setText("TestMail ");
    Transport.send(message)

我的电子邮件网关在端口587上有启用SSL的传入邮件设置和启用TLS的传出邮件设置。我可以在outlook中配置这个设置，它工作得很好。但是通过我的java程序，它说“连接被拒绝”。感谢您的帮助！

我使用InstallCert程序导入certicate以生成jssecacerts文件，并将该文件添加到/jre/lib/security/path中。下面是我的工作代码

    properties.put("mail.transport.protocol", "smtp");
    properties.put("mail.smtp.host", "XXXXXX");  
    properties.put("mail.smtp.port", "465"); 
    properties.put("mail.smtp.ssl.enable", true);
    properties.put("mail.smtp.socketFactory.port", "465");
    properties.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
    properties.put("mail.smtp.socketFactory.fallback", "false"); 
    properties.put("mail.smtp.quitwait", "false"); 
    properties.put("mail.smtp.auth", "true"); 

Answer 1

props.put("mail.transport.protocol", "smtps");
props.put("mail.smtps.starttls.enable","true");
props.put("mail.smtps.auth", "true");
props.put("mail.smtps.host", "mail.xxxx.com");
props.put("mail.smtps.port", "587");

props.put("mail.transport.protocol.rfc822", "smtps");