Android JavaX-Mail具有SSL-Handshake-Exception

Question

public class GMailSender extends javax.mail.Authenticator {
    static {
        Security.addProvider(new JSSEProvider());
    }
    private final String user;
    private final String password;
    private final Session session;

    public GMailSender(String user, String password) {
        this.user = user;
        this.password = password;
        Properties props = new Properties();
        props.setProperty("mail.smtp.host", "xtenxion.com");
        props.setProperty("mail.smtp.ssl.enable", "true");
        props.setProperty("mail.transport.protocol", "smtp");
        props.put("mail.smtp.user", user);
        props.setProperty("mail.smtp.ssl.trust", "xtenxion.com");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.port", "465");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.socketFactory.port", "465");
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.put("mail.smtp.socketFactory.fallback", "false");
        props.setProperty("mail.smtp.quitwait", "false");
        session = Session.getDefaultInstance(props, this);
    }

    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(user, password);
    }

    public synchronized Boolean sendMail(String subject, String body, String sender, String recipients) {
        try {
            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(sender));
            message.addRecipient(Message.RecipientType.TO,new InternetAddress(recipients));
            message.setSubject(subject);
            message.setText(body);
            Transport.send(message);
            Log.e("SendMail","message sent successfully....");
            return true;
        } catch (Exception e) {
            Log.e("SendMail", e.getMessage(), e);
            return false;
        }
    }

}

有此例外：

更新：

public class GMailSender extends javax.mail.Authenticator {
    static {
        Security.addProvider(new JSSEProvider());
    }

    private final Session session;

    public GMailSender(String user, String password) {
        Properties props = new Properties();
        props.setProperty("mail.smtp.host", "xtenxion.com");
        props.setProperty("mail.smtp.ssl.trust", "xtenxion.com");
        props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.setProperty("mail.smtp.socketFactory.fallback", "false");
        props.setProperty("mail.smtp.port", "465");
        props.setProperty("mail.smtp.socketFactory.port", "465");
        props.put("mail.smtp.auth", "true");
        props.put("mail.debug", "true");
        props.put("mail.store.protocol", "pop3");
        props.put("mail.transport.protocol", "smtp");
        session = Session.getInstance(props,
                new javax.mail.Authenticator() {
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(user, password);
                    }
                });
        session.setDebug(true);
    }



    public synchronized Boolean sendMail(String subject, String body, String sender, String recipients) {
        try {
            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(sender));
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
            message.setSubject(subject);
            message.setText(body);
            Transport.send(message);
            Log.e("SendMail", "message sent successfully....");
            return true;
        } catch (Exception e) {
            Log.e("SendMail", "Error " + e.getMessage());
            return false;
        }
    }

}

例外情况：

Answer 1

String host = "smtp.gmail.com";
String username = "user";
String password = "passwd";
Properties props = new Properties();
props.setProperty("mail.smtp.host", host);
props.setProperty("mail.smtp.ssl.enable", "true");
// set any other needed mail.smtp.* properties here
Session session = Session.getInstance(props);
MimeMessage msg = new MimeMessage(session);
// set the message content here
Transport.send(msg, username, password);