java - 无法将套接字转换为TLS

我正在尝试在Eclipse IDE中使用Java Servlet发送电子邮件。
这是我的代码。

    final String username = "******@gmail.com";
    final String password = "******";

    Properties props = new Properties();
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.host", "smtp.gmail.com");
    props.put("mail.smtp.port", "587");
    props.put("mail.smtp.ssl.trust", "smtpserver");

    Session session1 = Session.getInstance(props, new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
      });

    try
    {
        if(result)
        {

            Message message = new MimeMessage(session1);
            message.setFrom(new InternetAddress("******[email protected]"));
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(email));

            message.setSubject("Welcome To Our Bank");
            message.setText("Dear "+custname+","
                    +"\n\n Your Account has been Created Successfully."
                    +"\n\n Your Account Details Are:"
                    +"\n   User Id : "+userid+""
                    +"\n   Account Number : "+accno+""
                    +"\n   Login Password : "+passwd+""
                    +"\n   Transaction Password : "+t_passwd+"");

            Transport.send(message);
            out.println("mail sent");
        }
    }
    catch(MessagingException e)
    {
        out.println("Exception Caught : "+e);
}

这是执行后发生的异常。

引发异常:javax.mail.MessagingException:无法将套接字转换为TLS；无法将套接字转换为TLS。
嵌套的异常是:
java.io.IOException:服务器不受信任:smtp.gmail.com

最佳答案

通过将“mail.smtp.ssl.trust”设置为“smtpserver”，您已经说过，您仅信任名为“smtpserver”的服务器。 “smtp.gmail.com”未命名为“smtpserver”。