Java Mail 无法远程工作

Question

我已经制作了一个 Java Mail Servlet 来发送电子邮件。它在生产服务器上运行得很好，但是当我尝试在我自己的家庭服务器上运行它时，我收到以下错误消息

javax.mail.SendFailedException:地址无效；

javax.servlet.ServletException:javax.mail.SendFailedException:无效地址； 嵌套异常是: com.sun.mail.smtp.SMTPAddressFailedException:554 5.7.1 < *@googlemail.com>:中继访问被拒绝

evo.net.Mail.service(Mail.java:60)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52

我将 servlet 中的主机名变量从 localhost 更改为服务器的 IP，但没有产生任何影响。

我的代码:

package evo.net;
import java.util.*;

import javax.mail.*;
import javax.mail.Session;
import javax.mail.internet.*;
import javax.activation.*;

import java.io.IOException;
import java.io.PrintWriter;

 import javax.servlet.ServletException;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 @WebServlet("/Mail")
 public class Mail extends HttpServlet {
private static final long serialVersionUID = 1L;

 public Mail() {
    super();
 }

protected void service(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {

    PrintWriter out = response.getWriter();

    String to = "********";
    String from = "*******@codeprojects.co.uk";
    String host = "codeprojects.co.uk";

    Properties props = System.getProperties();

    props.put("mail.smtp.host", host);
    props.put("mail.smtp.auth", "true");

    Session session = Session.getDefaultInstance(props, new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("root", "*****");
            }
      });

    try {
        Transport trans = session.getTransport("smtp");
        trans.connect("root", "******");

        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress(from));
        message.addRecipient(Message.RecipientType.TO, new             InternetAddress(to));

        message.setSubject("The subject");
        message.setText("Hello World");

        trans.sendMessage(message, message.getAllRecipients());;
        out.println("Test");

    } catch(MessagingException mex) {
        throw new ServletException(mex);
    }
}
  }

Answer 1

Google 会验证您发送邮件的来源(或声称您发送邮件的来源)的域。

如果您使用的是开发帐户，您将获得与生产帐户不同的行为。每个主要邮件提供商(包括亚马逊 SES)都是如此

你的答案就在 Domain Keys