使用pop3获取草稿并使用Java发送项目

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

public class SendEmail {
    public static void main(String[] args) {
        // Set up the mail server properties
        Properties props = new Properties();
        props.put("mail.smtp.host", "smtp.example.com");
        props.put("mail.smtp.port", "25");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");

        // Get a mail session
        Session session = Session.getInstance(props);

        // Define the message
        MimeMessage message = new MimeMessage(session);
        try {
            message.setFrom(new InternetAddress("sender@example.com"));
            message.addRecipient(Message.RecipientType.TO, new InternetAddress("recipient@example.com"));
            message.setSubject("JavaMail test");
            message.setText("This is a test email sent using JavaMail API.");
        } catch (MessagingException e) {
            e.printStackTrace();
        }

        // Send the message
        Transport transport = null;
        try {
            transport = session.getTransport("smtp");
            transport.connect("smtp.example.com", "username", "password");
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }
}