- React: Components, Props, Events, Hooks, Axios
- Node & Express: Web API, Body Parser
- duplicate .env.example in backend folder and rename it to .env
- create account on mailgun.com
- enter domain and api key in the .env file
$ cd backend
$ npm install
$ npm start
# open new terminal
$ npm install
$ npm start
- Open http://localhost:3000
- Enter email, subject and message and click send email
- Check your inbox