Nodemailer 正在发送主题与线程相同的电子邮件

Question

如果电子邮件与之前发送的电子邮件具有相同的主题，则 Nodemailer 会将电子邮件作为线程发送。但我想将这些电子邮件作为单独的电子邮件发送，即使它们的主题相同。

我有一个向用户发送通知电子邮件的应用程序。这些电子邮件都有相同的主题：通知。这导致电子邮件显示为线索，至少在 Gmail 中是这样：

如何让每封通知电子邮件单独发送？

const nodemailer = require('nodemailer');

const logger = require('./logger');

class Email {
  constructor(email, to, pass) {
    this.user = email;
    this.to = to;
    this.pass = pass;
  }

  get mailOptions() {
    return {
      from: this.user,
      to: this.to,
      subject: 'notification',
      html: 'You received a new purchase in your shop.',
    };
  }

  get transporter() {
    const transporter = nodemailer.createTransport({
// for zoho emails
      host: 'smtp.zoho.com',
      port: 587,
      secure: false,
      auth: {
        user: this.user,
        pass: this.pass,
      },
    });

    return transporter;
  }

  send(cb) {
    this.transporter.sendMail(
      this.mailOptions,
      cb ||
        ((error, info) => {
          if (error) console.log(error);
          if (info) logger.log('silly', `message sent: ${info.messageId}`);
          this.transporter.close();
        })
    );
  }

  sendSync() {
    return new Promise((res, rej) =>
      this.transporter.sendMail(this.mailOptions, (error, info) => {
        if (error) rej(error);
        else res(info);
        this.transporter.close();
      })
    );
  }
}

const email = new Email(
  '[email protected]',
  '[email protected]',
  'SendINgEmAIlPassWoRD'
);

email.send();

Answer 1

在邮件选项的标头中使用带有随机值的参考属性。例如：

const mailOptions = {
  from: '[email protected]',
  to: '[email protected]',
  subject: 'This is a test email',
  text: 'This is the body of the email.',
  headers: {
    References: '<unique-reference-id>'
  }
};