How to use nodemailer in node js?

Whether used for personal or professional reasons, email communication is still a crucial aspect of our lives in the digital age. A robust JavaScript runtime called Node.js provides a number of tools that make a variety of tasks—including sending emails—easier. Nodemailer is one such well-liked package that helps programmers to easily incorporate email capabilities into their Node.js applications. This article will lead you through the process of sending emails effectively using Nodemailer.

What is  Nodemailer

A popular Node.js package called Nodemailer makes it easier to send emails from a Node.js application. It offers a simple API to create and send emails using different transport protocols, such as SMTP, Sendmail, and others. Nodemailer enables attachments, HTML, and text emails, as well as more sophisticated functionality like sending via well-known email services.

Getting Started with Nodemailer

Make sure Node.js and npm (Node Package Manager) are installed on your system before you begin using Nodemailer. If they aren’t already downloaded, you can do so via the official Node.js website. To begin using Nodemailer after installing Node.js, follow these steps:

Create a New Node.js Project: Create a new directory for your project and initialize it with npm using the command:

 Npm init -y 

Install Nodemailer: Open your terminal and install Nodemailer as a dependency by running the following command:

  Npm install nodemailer

Import Nodemailer: In your Node.js application file, import the Nodemailer module using the   require  statement: 

const nodemailer = require(‘nodemailer’);

Sending an Email Using Nodemailer

It’s time to send your first email because Nodemailer has been set up in your project. Here’s a simple illustration of how to use Nodemailer to send a text-only email:

const nodemailer = require('nodemailer'); // Create a transporter object const transporter = nodemailer.createTransport({ service: 'Gmail', // You can use any email service you prefer auth: { user: '', pass: 'your_email_password' } }); // Define email content const mailOptions = { from: '', to: '', subject: 'Hello from Nodemailer', text: 'This is a test email sent using Nodemailer.' }; // Send the email transporter.sendMail(mailOptions, (error, info) => { if (error) { console.log('Error:', error); } else { console.log('Email sent:', info.response); } });
Code language: JavaScript (javascript)

Advanced Email Features

  • Alongside only delivering text emails, Nodemailer provides a wide range of features:
  • HTML Content: To send emails with HTML formatting, use the html property in the mailOptions object rather than the text property.
  • Email attachments can be made by using the mailOptions object’s attachments field. By doing so, you can send items like pictures, documents, and other things along with your email.
  • Using SMTP Transport Although the aforementioned example makes use of Gmail’s service, you may also configure your own SMTP server to send emails. Set up the transporter object appropriately by entering the information for your SMTP server.


The flexible and dynamic module Nodemailer makes email integration in Node.js applications simple. You may send text or HTML emails, attach files, and adjust a variety of email parameters with its simple API. Nodemailer simplifies the process of easily integrating email communication into any project, be it personal or professional.

In this article, we went through the fundamentals of installing Nodemailer, how to send an email, and some of its more sophisticated features. You can study Nodemailer’s documentation as you get experience with it to discover even additional ways to improve your email communication in Node.js.




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