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Building an Email Sending Application with Node.js and Nodemailer

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  • Post last modified:May 3, 2024


Nodemailer is a popular Node.js module for sending emails. It provides a simple and easy-to-use API for sending emails using various transport methods such as SMTP, sendmail, or even directly through HTTP. In this tutorial, we will learn how to build an email sending application using Node.js and Nodemailer.


Before we begin, ensure you have the following installed:

  • Node.js installed on your machine (Download Node.js).
  • An internet connection for downloading dependencies.
  • An email account (Gmail, Outlook, etc.) for sending emails.

Step 1: Setting up the Project

  1. Create a new directory for your project: mkdir nodemailer-example
  2. Navigate into the project directory: cd nodemailer-example
  3. Initialize a new Node.js project: npm init -y

Step 2: Installing Nodemailer

Now, let’s install Nodemailer as a dependency for our project:

npm install nodemailer

Step 3: Writing the Email Sending Script

Create a new file named sendEmail.js in your project directory. This file will contain the script for sending emails using Nodemailer.

Replace '' and 'your-email-password' with your actual email address and password.

Step 4: Running the Script

Now, let’s run the sendEmail.js script to send an email:

node sendEmail.js

You should see a message indicating that the email was sent successfully.


You can further customize the email message options, such as adding HTML content, attachments, and more, by referring to the Nodemailer documentation.

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