Javamail API - 如何将setFrom更改为您想要的任何内容？

Question

如何将setFrom()方法更改为我想要的任何方法？我可以通过我的gmail accoutn发送电子邮件并更改setFrom文本,但它显示我username的电子邮件.我也试过使用我的雅虎帐户,我收到了身份验证错误.

我想更改发件人地址.代码如下:

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 SendMailTLS {

    public static void main(String[] args) {

        final String username = "username@gmail.com";
        final String password = "password";

        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 {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("from-email@gmail.com"));
            message.setRecipients(Message.RecipientType.TO,
                InternetAddress.parse("to-email@gmail.com"));
            message.setSubject("Testing Subject");
            message.setText("Dear Mail Crawler,"
                + "\n\n No spam to my email, please!");

            Transport.send(message);

            System.out.println("Done");

        } catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }
}

Answer 1

许多信誉良好的 SMTP 中继不允许您伪造自己的身份（这将使垃圾邮件发送者更容易滥用该服务）。也就是说，如果您的目标是避免收件箱中出现更多邮件，Google 允许您修改您的电子邮件地址，以便您可以过滤对电子邮件的任何回复。