Sending emails with ExpressJS, Nodemailer, Gmail and OAuth2

This course provides a focused, step-by-step guide on integrating Nodemailer with OAuth2 and the Gmail API to send emails from your server, ensuring secure and efficient email delivery.

As Google has phased out app-specific passwords, OAuth2 is now the recommended method for server-side email sending.

This course will teach you how to properly implement this using modern tools and best practices.

We begin by setting up an Express server, laying the foundation for our email-sending application.

Next, we'll configure the necessary routes and controllers to handle email requests efficiently. You’ll learn how to set up the Gmail API with OAuth2, involving the creation and management of client credentials such as the client ID, client secret, access tokens, and refresh tokens.

Once our backend is ready, we will test the email functionality using Postman, ensuring everything is configured correctly.

The course doesn’t stop there; we'll also build a React-based frontend client that includes a contact form. This form will be integrated with our Express server, allowing users to submit inquiries directly to your inbox via email.

By the end of this course, you will have a fully functional email-sending system using modern, secure practices, ready to be applied to your projects.