如何在sendgrid v3 node.js中给多个收件人发送电子邮件

Question

有人能帮我在sendgrid v3 + node.js中向多个收件人发送电子邮件吗？我注意到当我在to字段中输入多个电子邮件地址时，只有第一个电子邮件地址会收到电子邮件。第一个之后的电子邮件地址将无法收到电子邮件：

send: function(email, callback) {
    var from_email = new helper.Email(email.from);
    var to_email = new helper.Email('[e-mail],[e-mail],[e-mail]');
    var subject = email.subject;
    var content = email.content
    var mail = new helper.Mail(from_email, subject, to_email, content);
    var sg = require('sendgrid')(process.env.SENDGRID_API_KEY);
    var request = sg.emptyRequest({
      method: 'POST',
      path: '/v3/mail/send',
      body: mail.toJSON(),
    });

    sg.API(request, function(err, res) {
        console.log(res);
        if(err) {
            console.log('---error sending email:---');
            console.log(err);
            console.log(err.response.body);
            callback(500);
        } else {
            callback(200);
        }
    });

}

在上面的例子中，只有[e-mail]收到了邮件；[e-mail]和[e-mail]没有收到邮件。

有人能帮忙吗？

提前致谢！

- Trung Tran

---

这个回答解决了你的问题吗？NodeJS Sendrgrid在向多个收件人发送电子邮件时出现问题 - foba

Answer 1

Node.js邮件助手允许您通过将to属性指定为数组来发送给多个收件人。然后，根据您是否希望收件人能够看到彼此的地址，您可以以稍微不同的方式发送消息：

如果要允许查看，请使用sgMail.send(msg)：

const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(process.env.SENDGRID_API_KEY);
const msg = {
  to: ['[e-mail]', '[e-mail]'],
  from: '[e-mail]',
  subject: 'Hello world',
  text: 'Hello plain world!',
  html: '<p>Hello HTML world!</p>',
};
sgMail.send(msg);

为了避免被查看，请使用 sgMail.sendMultiple(msg) 或 sgMail.send(msg, true)

const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(process.env.SENDGRID_API_KEY);
const msg = {
  to: ['[e-mail]', '[e-mail]'],
  from: '[e-mail]',
  subject: 'Hello world',
  text: 'Hello plain world!',
  html: '<p>Hello HTML world!</p>',
};
sgMail.sendMultiple(msg);

https://github.com/sendgrid/sendgrid-nodejs/blob/b3b2092b7a150ffc5d68c9bb6575810a5827f69e/docs/use-cases/single-email-multiple-recipients.md

此工具使用了Personalizations，您可以使用它来获得更精细的控制:

https://sendgrid.com/docs/for-developers/sending-email/personalizations/

- TreeAndLeaf

Answer 2

const sgMail = require('@sendgrid/mail');
module.exports.send = function () {
    sgMail.setApiKey('XYZ');
    const msg = {
        to: ['[e-mail]', '[e-mail]'],
        cc: ['[e-mail]', '[e-mail]'],
        from: '[e-mail]',
        subject: 'Subject of mail',
        html: 'html body',
        text: 'text message'
    };
    // console.log('message in mail :: ', msg);
    sgMail.send(msg).catch(console.error);
};

- vimmi

Answer 3

{
  "from": "[e-mail]",
  "template_id": "YOUR TEMPLATE ID",
  "personalizations": [
    {
      "to": [
        {
          "email": "[e-mail]"
        }
      ],
      "send_at": 1600188812
    },
    {
      "to": [
        {
          "email": "[e-mail]"
        }
      ],
      "send_at": 1600275471
    }
  ]
}

- vishal sharma

Answer 4

你是否在使用SendGrid的助手库？你需要利用个性化功能。

如果你希望收件人看到彼此，你应该在单个个性化对象中命名和填充每个收件人。如果你不希望他们看到彼此，并希望每个收件人分别接收消息，则需要为每个不同的收件人组创建一个新的个性化对象。

- jacobmovingfwd

---

是的，我正在使用SendGrid的辅助库 - 所以您的意思是将每个人的电子邮件列在单个字符串中不起作用吗？例如：to: [e-mail]; [e-mail]; [e-mail]？ - Trung Tran

正确。为了防止有人不小心发送给所有人而不是想要的人，SendGrid不会使用原生的To:头部。他们希望您使用Personalizations对象，以便您的收件人交叉可见性意图明确。 - jacobmovingfwd

Answer 5

Sendgrid API V3

希望这能帮到你。

https://www.npmjs.com/package/sendgrid-v3-node

Example: https://runkit.com/embed/ne9asbfj59fr

var sendgrid = require("sendgrid-v3-node")

const mailOptions = {
    sendgrid_key: 'SENDGRID_KEY',
    from_email: 'FROM_EMAIL',
    from_name: 'FROM_NAME',
    to: ['TO_EMAIL1', 'TO_EMAIL2']
};

mailOptions.subject = 'SUBJECT';
mailOptions.content = 'CONTENT';
sendgrid.send_via_sendgrid(mailOptions).then(response => {
    console.log(response);
});

- ruin3936