It looks like this: Most of the things are similar here, as implemented in the signup function. Notice that our bill data is hard coded here. I am unable to find any solution. It connects to the SMTP server with options set in the config.json file. To encapsulate the email sending functionality and make it easy to send email from anywhere in your Node.js application you can create a sendEmail helper function like below. Create a new directory node-email. Calling app.render() will render the template you specify as a string and pass it to its callback, plus whatever data you pass into it. We have a function called signup here. Open up your terminal in your working directory and write the following command: The -y flag here helps us to set the values as default. Now let’s go to our file appController.js , and write the following lines of code: It’s a lot of code! Then you can see there is pseudocode for the user signup. -y flag is optional, … This secure option helps us to implement TLS, if set to true. So its a little ugly with callbacks, but this is a solution that doesnt add any dependencies. You can try out other themes that mailgen has to offer. After you have downloaded the Nodemailer module, you can include the module in any application: var nodemailer = require ('nodemailer'); Not only that, we will be creating a REST API to post required details to a node.js app for sending emails. Now let’s try this out. Now let’s take a look at the getBill function. Then you can see that we have a variable called mail . So, you will have to ask yahoo to generate a random set of string as a password for your app. First of all create an express as previous created. Then click on your profile image. With Nodemailer, you can create HTML emails with attachments and send them via SMTP, SES (wrapper for sending emails via AWS SES), or sendmail. In this article we know that how to send email in node.js. It’s the most popular framework as of now (the most starred on NPM). After that we have auth , which takes in user and pass . The Nodemailer module makes it easy to send emails from your computer. The body has an option for the outro too; we will learn about it shortly. Now let’s take a look at signup function. This should get you started with nodemailer. Learn how to send an email in Node.js using the awesome Nodemailer library. In past I have used it in my projects so it was obvious choice for me to get started. While designing HTML email is a pain, sending HTML email may required an additional step or two than what you’re used to but it’s still super easy. We can send emails in Node using the Nodemailer library. In order to learn how to send email, we will write some code to send email to a newly signed up user. If you want to implement other email service provider, here’s a link, which shows some of the supported email service provider. So we’ve just seen three different ways to send emails with Node. If you want to dig deeper with nodemailer, you can follow this link, which will take you to its documentation. After that we have written code to check whether the message is sent to our user. The outro is the ending section of our email. The table object contains data , which is an array of objects. We could test our scripts manually and use our own email addresses as te recipient but this process is slow and unreliable. Now let’s take a look at the variable called the message. Then we have transporter. In our case we are using the default theme. You obviously know about that. You can also see that there is an option for secure inside of the createTransport. This service takes in the email service provider. 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