Send bulk email to users using MailerSend

send-critical-update-email.js

const Recipient = require('mailersend').Recipient;
const EmailParams = require('mailersend').EmailParams;
const BulkEmails = require('mailersend').BulkEmails;
const MailerSend = require('mailersend');
const users = require('./users');

const MAILERSEND_API_KEY = process.env.MAILERSEND_API_KEY;

if (!MAILERSEND_API_KEY) {
  console.error('MAILERSEND_API_KEY is required');
  process.exit(1);
}

const subject = '[Action Required] Update your approved email address at amazon.com';
const templateId = 'your-unique-mailersend-template-id';
const fromEmail = '[email protected]';
const fromName = 'Daniel from KTool';

const mailersend = new MailerSend({
  api_key: MAILERSEND_API_KEY,
});

const bulkEmails = new BulkEmails();

users.forEach((user) => {
  const email = user.email;
  const name = user.name || 'there';

  const recipients = [new Recipient(email, name)];
  const personalization = [
    {
      email,
      data: {
        name,
      },
    },
  ];

  const emailParams = new EmailParams()
    .setFrom(fromEmail)
    .setFromName(fromName)
    .setRecipients(recipients)
    .setSubject(subject)
    .setTemplateId(templateId)
    .setPersonalization(personalization);

  bulkEmails.addEmail(emailParams);
});

mailersend
  .sendBulk(bulkEmails)
  .then((response) => response.json())
  .then((data) => {
    console.log(data);

    mailersend
      .getBulkEmailRequestStatus(data)
      .then((response) => response.json())
      .then((data) => console.log(data));
  });

users.js

module.exports = [
  { email: '[email protected]', name: 'Steve Jobs' },
  { email: '[email protected]', name: 'Daniel Nguyen' },
]