Essential Guide: Send Transactional Emails In Node.js With Convex And Autosend API

Every business needs to send transactional emails at some point. Transactional emails are the very foundation of an online communication framework that works towards users from a business.

What are transactional emails? Well, in simple terms, Transactional emails are just some automated system generated emails which are sent in response to user actions, such as account verification, password resets, order confirmations, and other critical online communications.

If compared to marketing emails, transactional emails have higher discoverability requirements and often contain urgently needed information.

AutoSend is a great email platform I have recently discovered which is so easy to setup for sending transactional emails and I found it really amazing for a relatively new email platform to have so nice of a developer experience including polished docs, helpful guides, and an friendly community of encouraging developers.

AutoSend is a lightweight SendGrid alternative for transactional and marketing emails. Simple, modern, and built to scale.

I know you say it compares to resend and mailgun and you have complaints why it does not have a free tier. But you need to understand that it automates and abstracts away lot of tedius email domain configurations and provides you a easy headstart with a very intuitive web api. And, most importantly the hobby tier (lowest paid tier) starts from just $1/month, which is affordable for almost everybody with you being able to send 3000 emails/month (no max limit for daily emails).

In this guide, we will go through how to implement transactional email functionality in a Node.js application using Convex as the backend database and AutoSend API for email delivery. We'll use a complete email OTP (One-Time Password) authentication system as our practical example.

Node.js will be the runtime environment for our server-side application. It will handle all HTTP requests and coordinate between different services.

Convex is the backend platform that keeps your app in sync. Everything you need to build your full-stack project.

AutoSend is an email platform for developers and marketers to send and track transactional and marketing emails.

Source: Dev.to