写一个java批量推送邮件然后根据退信邮件判断是否发送成功

首先，需要使用JavaMail API来发送电子邮件。可以使用Session类来配置和创建邮件信息。然后使用Transport类来发送邮件。

其次，可以使用JavaMail API检查退信邮件。可以使用Folder类和Message类来打开收件箱并检查退信邮件。

下面是一个示例代码：

import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendBatchEmails {

    public static void main(String[] args) {

        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");

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

        try {

            //发送邮件给所有收件人
            String[] recipients = {"recipient1@example.com", "recipient2@example.com"};
            for (String recipient : recipients) {
                Message message = new MimeMessage(session);
                message.setFrom(new InternetAddress("from@example.com"));
                message.setRecipients(Message.RecipientType.TO,
                        InternetAddress.parse(recipient));
                message.setSubject("Testing Subject");
                message.setText("Dear Mail Crawler,"
                        + "\n\n No spam to my email, please!");

                Transport.send(message);
                System.out.println("Sent message to " + recipient + " successfully.");
            }

            //检查退信邮件
            Folder folder = ...; //打开收件箱
            Message[] messages = folder.getMessages();
            for (Message message : messages) {
                if (message.getSubject().contains("Delivery Status Notification")) {
                    System.out.println("Delivery failed for recipient: " + message.getRecipients()[0]);
                }
            }

        } catch (MessagingException e) {