How To Send An Email in Node JS Using An SMTP (Step-By-Step)

Do you want to send an Email to your users in Node JS? Learn how to do so by first setting up an SMTP using Brevo SMTP and then sending the first email in this step-by-step guide! Brevo offers a free tier with up to 300 free emails per day, which is enough for most small projects!

• Set up Brevo SMTP
• Send an Email in Node JS
• Conclusion

Set up Brevo SMTP

Before we can send an Email we have to set up an SMTP service. For this guide, I am using Brevo because I have a good experience with them, and the 300 free emails per day are enough for my projects. You can use whatever SMTP server you have access to, though.

1. Create an account for Brevo here (affiliate link).
2. Log in to your account
3. Click on your Profile and go to “SMTP & API”
   
4. Click on “Generate a new SMTP key”
   
5. Enter a name for the key, for example, “node-mail”
6. Copy the key. You will need it in the next step

Send an Email in Node JS

Now that we have set up Brevo, you need the following details from the last steps to be able to send an email using the SMTP:

• SMTP Server: smtp-relay.sendinblue.com
• Port: 587
• Login: <your-email>
• Key: <your-key>

For this guide, I will create a new project, install the nodemailer npm package and then send an email using it. Follow these steps:

1. npm init -y
2. npm i nodemailer
3. Create a file called index.js
4. Enter the following code:

const { createTransport } = require('nodemailer');

const transporter = createTransport({
    host: "smtp-relay.sendinblue.com",
    port: 587,
    auth: {
        user: "<your-login>",
        pass: "<your-key>",
    },
});

const mailOptions = {
    from: '<your-login>',
    to: '<your-receiver>',
    subject: `Your subject`,
    text: `Your text content`
};

transporter.sendMail(mailOptions, function(error, info){
    if (error) {
        console.log(error);
    } else {
        console.log('Email sent: ' + info.response);
    }
});

With this, you are able to send emails using Node JS and Brevo SMTP. Try it out now, and let me know what you think!

Conclusion

In this guide, how to set up Brevo SMTP and use it to send an email in Node JS. I hope the guide was helpful to you, and if you have any questions, feel free to ask.

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