test.js

"use strict";
const nodemailer = require("nodemailer");

/**
 * sendEmail
 * @param {Object} mailObj - Email meta data and body
 * @param {String} from - Email address of the sender
 * @param {Array} receipents - Array of receipents email address
 * @param {String} subject - Subject of the email
 * @param {String} message - message
 */
const sendEmail = async (mailObj) => {
  const { from, receipents, subject, message } = mailObj;

  try {
    // Create a transporter
    let transporter = nodemailer.createTransport({
      host: "smtp-relay.sendinblue.com",
      port: 587,
      auth: {
        user: "hello@schadokar.dev",
        pass: "SMTP-KEY",
      },
    });

    // send mail with defined transport object
    let mailStatus = await transporter.sendMail({
      from: from, // sender address
      to: receipents, // list of receipents
      subject: subject, // Subject line
      text: message, // plain text
    });

    console.log(`Message sent: ${mailStatus.messageId}`);
    return `Message sent: ${mailStatus.messageId}`;
  } catch (error) {
    console.error(error);
    throw new Error(
      `Something went wrong in the sendmail method. Error: ${error.message}`
    );
  }
};

const mailObj = {
  from: "hello@schadokar.dev",
  receipents: ["me@schadokar.dev"],
  subject: "Sending email by nodejs",
  message: "Namaste",
};

sendEmail(mailObj).then((res) => {
  console.log(res);
});