Question

我正在尝试使用Angular 4，nodejs，mailgun-js和mailgun在注册流程上实现简单的电子邮件确认。问题是邮件发送：

mailgun.messages().send(data, function(error, body) {
        console.log(body);
    });

在前端超时时出现以下错误：

POST http://localhost:3000/users/sendMail net::ERR_EMPTY_RESPONSE
core.js:1448 ERROR 
HttpErrorResponse {headers: HttpHeaders, status: 0, statusText: "Unknown Error", url: null, ok: false, …}
error
:
ProgressEvent {isTrusted: true, lengthComputable: false, loaded: 0, total: 0, type: "error", …}
headers
:
HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, headers: Map(0)}
message
:
"Http failure response for (unknown url): 0 Unknown Error"
name
:
"HttpErrorResponse"
ok
:
false
status
:
0
statusText
:
"Unknown Error"
url
:
null
__proto__
:
HttpResponseBase

后端显示现在出错但返回值（正文）未定义且未发送电子邮件。这是我完整的后端sendMail模块：

const api_key = '<key-f40360259dea7c667ca06d4aee956421>';
const DOMAIN = '<sandbox836cdf3cfe9c467b916fe5bb0d73e7e7.mailgun.org>';
const mailgun = require('mailgun-js')({ apiKey: api_key, domain: DOMAIN });
// ---------------- sendMail variables -----

router.post('/sendMail', (req, res, next) => {

    console.log("Email message data: " + JSON.stringify(req.body));

    const data = {
        from: 'xxxxdev@gmail.com',
        to: [req.body.email, 'xxxxxxx@gmail.com'],
        name: req.body.firstName,
        code: req.body.workshopCode,
        subject: req.body.workshopTitle,
        text: req.body.messageBody
    };

    mailgun.messages().send(data, function(error, body) {
        console.log(body);
    });
});

From和To电子邮件都是有效的电子邮件地址，console.log中显示的req.body是从前端传递的正确数据。

这是前端sendmail模块：

 sendEmailConfirmation(message) {
     const headers = new HttpHeaders();
     headers.append('Content-Type', 'application/x-www-form-urlencoded');

     this.http.post('http://localhost:3000/users/sendMail', message).subscribe((data) => {
          console.log('Mail return data: ' + data);   >>>THIS LINE IS NEVER EXECUTED<<<<<<
              },
        );
  }

我在这里缺少什么？.....

我注意到没有res.send所以我添加了以下内容：

if (error) throw error;
        else {
            res.send('Email sent');
        }

现在我在后端遇到了一个禁止的错误：

(node:10780) UnhandledPromiseRejectionWarning: Error: Forbidden
    at IncomingMessage.res.on (C:\connect2Server\node_modules\mailgun-js\lib\request.js:301:17)
    at IncomingMessage.emit (events.js:165:20)
    at endReadableNT (_stream_readable.js:1101:12)
    at process._tickCallback (internal/process/next_tick.js:152:19)
(node:10780) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a ca
tch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)

Answer 1

问题解决了.....由邮件枪凭证中的拼写错误引起的。 '＆lt;' '＆GT;'复制过的括号.....线索是Forbidden错误。

Answer 2

请确保如果您从欧洲发送，还包括 host，如下所示：

const mg = mailgun({apiKey: MAILGUN_PRIVATE_API_KEY, domain: MAILGUN_DOMAIN_NAME, host:MAILGUN_HOST});

据我所知，对于欧洲来说，host 是 api.eu.mailgun.net，对于美国来说是 api.mailgun.net。

mailgun不发送返回未定义数据的电子邮件

2 个答案: