How to send Attachments and Email using nodemailer in Node.js ?

For this purpose, we will use a package called nodemailer. It is a module that makes email sending pretty easy. For using it, you will need to install by using the following command: 

$ npm install nodemailer

Features of nodemailer module: 

• It has zero dependencies and heavy security.
• You can use it hassle-free whether it is Azure or Windows box.
• It also comes with Custom Plugin support for manipulating messages.

In order to send an email, create a file named index.js and write down the following code: 

Filename: index.js 

Steps to run this program: In order to run this file, just Git Bash into your working directory and type the following command: 

$ nodemon index.js

If you don’t have Nodemon installed then just run the following command: 

$ node index.js

To double-check its working you can go to the receiver’s mail and you will get the following mail as shown below:  

What if you have multiple receivers? 

Well in that case just add the below code to your mail function: 

to: '[email protected], [email protected]'

What if you want to send HTML-formatted text to the receiver? 

Well in that case just add the below code to your mail function: 

html: "<h1>GeeksforGeeks</h1><p>I love geeksforgeeks</p>"

What if you want to send an attachment to the receiver? 

Well in that case just add the below code to your mail function: 

attachments: [
    {
        filename: 'mailtrap.png',
        path: __dirname + '/mailtrap.png',
        cid: 'uniq-mailtrap.png'
    }
]

The final index.js file looks like this: 

Filename: index.js