vanisingh-24 / Nodemailer

Submit a form, and receive email - Express + Nodejs + Nodemailer + MailGun

Prerequisites:

• Nodejs (Installed)
• MailGun API_KEY and DOMAIN

Before running any of the following steps. Make sure you run npm install to install any dependencies needed for this project.

Step 1

Create a file named .env, and copy everything inside the .env-example file to the .env file. Inside the .env file, fill in the information with your mailgun DOMAIN and API_KEY.

Step 2

In order to obtain the apiKey and domain. Navigate to MailGun. Create an account if you don't have one, scroll all the way down on the dashboard page, you should see your Private Api Key , and domain below.

Step 3

Navigate to the email.js file. Make sure that the receiver email is an authorized recipient otherwise you will NOT be able to send email to any recipients on the free tier without authorizing their email. Once you have an authorized recipient, replace the RECEIVER_EMAIL with the authorized recipient email

const sendMail = (email, subject, text, callback) => {
    const mailOptions = {
        from: email,
        to: 'RECEIVER_EMAIL',
        subject,
        text
    };

    transporter.sendMail(mailOptions, function (err, data) {
        if (err) {
            return callback(err, null);
        }
        return callback(null, data);
    });
}

Step 4

In order to send an email, we can bring our sendMail function from email.js file, and use it as below. If everything goes well, you should receive an email.

const sendMail = require('./email');

sendMail(email, subject, text, function(err, data) {
    if (err) {
        return console.log('Error occurs);
    }
    return console.log('Message sent!!!');
});

Once you have successfully completed the above steps. Run npm start and navigate to http://localhost:8080 to start the app.