JavaMail Yandex发送器

Question

我正在建立一个应用程序来发送和接收使用JavaMail的Java与Yandex的电子邮件。当我发送电子邮件时，我发现了一个问题，我不知道如何解决它。它只是弹出并错误地显示为535 5.7.8 Error: authentication failed: Invalid user or password!。

我的代码如下：

public static void sendFromYandex(String from, String pass, String to, String subject, String body) throws AddressException, MessagingException {
    Properties props = System.getProperties();
    String host = "smtp.yandex.com";
    props.put("mail.smtp.host", host);
    props.put("mail.smtp.user", from);
    props.put("mail.smtp.password", pass);
    props.put("mail.smtp.port", "465");
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.ssl.enable", "true");
    props.put("mail.smtp.quitwait", "false");
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    props.put("mail.debug", "true");

    Session session = Session.getInstance(props);
    session.setDebug(true);
    MimeMessage message = new MimeMessage(session);
    message.setHeader("Content-Type", "text/plain; charset=UTF-8");
    message.setSubject(subject, "UTF-8");
    message.setText(body, "UTF-8");

    try {
        message.setFrom(new InternetAddress(from));
        InternetAddress toAddress = new InternetAddress(to);
        message.addRecipient(Message.RecipientType.TO, toAddress);

        message.setSubject(subject);
        message.setText(body);
        Transport transport = session.getTransport("smtp");
        transport.connect(host, from, pass);
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();
    } catch (AddressException ae) {
    } catch (MessagingException me) {
    }
}

from和pass是登录Yandex服务的凭证。

Answer 1

        String from = "your_mail_address@yandex.com";
        String pass = "yourmail_password";
        String[] to = { "to_mail_address@****.com" };
        String host = "smtp.yandex.com";
        Properties props = System.getProperties();

        props.put("mail.smtp.host", host);
        props.put("mail.smtp.user", from);
        props.put("mail.smtp.password", pass);
        props.put("mail.smtp.port", "465");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.ssl.enable", "true");
        props.put("mail.smtp.quitwait", "false");
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.put("mail.debug", "true");

        Session session = Session.getDefaultInstance(props, null);

Answer 2

即使您的用户名和密码正确，也可能发生这种情况。在Google中有一个叫做“不太安全的应用程序”，搜索它并打开它。我相信Yandex应该有类似的东西。