Question

我使用nodemailer在node.js中设置了mailgun，当我使用REST客户端测试路由时，我无法获取它来发送电子邮件。当我直接将代码写入服务器文件时，服务器启动后立即发送电子邮件。

但是，当我在app.post中编写电子邮件api并使用REST客户端对其进行测试时，电子邮件在mailgun端失败并被Google拒绝？？？这只是我的假设，因为我得到了错误代码。

Server response: 550 5.7.1 Unauthenticated email from guest.com is not 
accepted due to domain's 5.7.1 DMARC policy. Please contact the administrator 
of guest.com domain if 5.7.1 this was a legitimate mail. Please visit 5.7.1 
https://support.google.com/mail/answer/2451690 to learn about the 5.7.1 DMARC 
initiative. s12-v6si3013316qtg.362 - gsmtp

我已经点击了提供的链接，并且文档说要与域服务器一起检查。我不明白为什么会收到此错误，因为我已经在mailgun中验证了我的gmail。

我还尝试过直接使用mailgun-js中间件进行切换。从mailgun.com，github上的mailgun-js和npmjs.com上的mailgun-js找到了三种不同的mailgun-js api。出现与上述相同的错误。

茫然。不知道该怎么办。

我的nodemailer代码：

const express = require('express');
const nodemailer = require('nodemailer');
const path = require('path');
const bodyParser = require('body-parser');    


const app = express();

const port = 3000;

app.use(bodyParser.json());

app.use(express.static(path.join(__dirname, 'dist')));       

app.post('/email', (req, res) => {
  let transporter = nodemailer.createTransport({
          host: 'smtp.mailgun.org',
          port: 587,
          secure: false, // true for 465, false for other ports
          auth: {
              user: 'postmaster@sandboxc8f2ecf64f364ca6ad740e658485c557.mailgun.org',
              pass: 'my API key here'
          },
          tls: {
            rejectUnauthorized: false
          }
      });

      // setup email data with unicode symbols
      let mailOptions = {
          from: req.body.from, // sender address
          to: 'cu0ngpitt@gmail.com', // list of receivers
          subject: 'Someone wrote you from your Online Resume!', // Subject line
          text: req.body.messge, // plain text body
      };

      // send mail with defined transport object
      transporter.sendMail(mailOptions, (error, info) => {
          if (error) {
              return console.log(error);
          }
          console.log('Message sent: %s', info.messageId);
          console.log('Preview URL: %s', nodemailer.getTestMessageUrl(info));
      });
});

app.get('/', (req, res) => {
  res.send('Hello world');
});

app.listen(port, () => {
  console.log('Server running on port ' + port);
})

Answer 1

Mailgun回复了我的票，并说由于DMARC的安全性，我只能发送与我的mailgun帐户具有相同域的电子邮件。

因为我有一个免费的mailgun帐户。我必须将发件人地址更改为我的免费mailgun地址，该地址为postmaster @ sandbox“一些长字符串”。mailgun.org

如果使用nodemailer，则可以省略发件人电子邮件或对其进行硬编码。

如果使用mailgun-js，则必须对其进行硬编码。

我的旧代码：

// setup email data with unicode symbols
      let mailOptions = {
          from: req.body.from, // sender address
          to: 'cu0ngpitt@gmail.com', // list of receivers
          subject: 'Someone wrote you from your Online Resume!', // Subject line
          text: req.body.messge, // plain text body
      };

更正的代码：

// setup email data with unicode symbols
      let mailOptions = {
          postmaster@sandbox"some long string".mailgun.org, // sender address
          to: 'cu0ngpitt@gmail.com', // list of receivers
          subject: 'Someone wrote you from your Online Resume!', // Subject line
          text: req.body.messge, // plain text body
      };

Mailgun-来自guest.com的未经身份验证的电子邮件

1 个答案: