带有 Gmail 的 JavaMail：535-5.7.1 不接受用户名和密码

当我尝试使用JavaMail API发送邮件时，我收到此错误。我确信用户名和密码是100%正确的。我正在连接的Gmail帐户是较旧的帐户，因为他们说使用新帐户需要时间。

DEBUG SMTP RCVD: 535-5.7.1 Username and Password not accepted. Learn more at

535 5.7.1 http://mail.google.com/support/bin/answer.py?answer=14257 x35sm3011668
wfh.6

javax.mail.SendFailedException: Sending failed;
  nested exception is:
        javax.mail.AuthenticationFailedException
        at javax.mail.Transport.send0(Transport.java:218)
        at javax.mail.Transport.send(Transport.java:80)
        at Main.(Main.java:41)
        at Main.main(Main.java:51)

这是我的代码：

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;

public class Main
{
    String  d_email = "abc@gmail.com",
            d_password = "pass",
            d_host = "smtp.gmail.com",
            d_port  = "465",
            m_to = "abc@gmail.com",
            m_subject = "Testing",
            m_text = "testing email.";

    public Main()
    {
        Properties props = new Properties();
        props.put("mail.smtp.user", d_email);
        props.put("mail.smtp.host", d_host);
        props.put("mail.smtp.port", d_port);
        props.put("mail.smtp.starttls.enable","true");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.debug", "true");
        props.put("mail.smtp.socketFactory.port", d_port);
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.put("mail.smtp.socketFactory.fallback", "false");

        SecurityManager security = System.getSecurityManager();

        try
        {
            Authenticator auth = new SMTPAuthenticator();
            Session session = Session.getInstance(props, auth);
            session.setDebug(true);
            MimeMessage msg = new MimeMessage(session);
            msg.setText(m_text);
            msg.setSubject(m_subject);
            msg.setFrom(new InternetAddress(d_email));
            msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to));
            Transport.send(msg);
        }
        catch (Exception mex)
        {
            mex.printStackTrace();
        } 
    }

    public static void main(String[] args)
    {
        Main blah = new Main();
    }

    private class SMTPAuthenticator extends javax.mail.Authenticator
    {
        public PasswordAuthentication getPasswordAuthentication()
        {
            return new PasswordAuthentication(d_email, d_password);
        }
    }
}