nodemailer-sendmail.js

const fs = require('fs');
const nodemailer = require('nodemailer');

const sendmail = (todaydate) => {
  let filename = `geckoboard_${todaydate}.jpg`;

  nodemailer.createTestAccount((err, account) => {
      let transporter = nodemailer.createTransport({
          host: env.EMAIL_HOST, // smtp host
          port: 25,
          secure: false,
          auth: {
              user: env.EMAIL_USER, //smtp user
              pass: env.EMAIL_PASSWORD //smtp password
          }
      });

      let mailOptions = {
          from: '<emailFrom>',
          to: '<emailTo>',
          cc: '<emailCC>',
          subject: 'Medvine Geckoboard Report for ' + todaydate + ' 🎉',
          text: 'Automate email for geckoboard report ' + todaydate + ' direct to you from Medvine Bot  🎉',
          html: '<b>Automate email for geckoboard report ' + todaydate + ' direct to you from Medvine Bot  🎉</b>',
          attachments: [
            {
                filename: filename,
                path: filename,
            }
          ]
      };

      // send mail with defined transport object
      transporter.sendMail(mailOptions, (error, info) => {
          if (error) {
              return console.log(error);
          }
          fs.unlinkSync(filename); // delete file when successful sendmail
          console.log('Message sent: %s', info.messageId);
      });
  });
}