Almost every web application needs the functionality to send transactional emails in response to various triggers. Events like account registration, password resets, purchase receipts, and user verification are among the many tasks today’s applications need to accomplish via email. These emails are crucial for notifying users of important updates and enabling key user workflows in your application. This post explores three different options for sending email from within a Node.js app.

On February 2nd and 3rd, Shy Ruparel joined me for another Courier and Contentful crossover stream. This time, we decided to play around with an IoT E-ink display and use it to show the latest posts from Contentful and send notifications using Courier. During Tuesday's Contentful Live we started working with the newly released Adafruit MagTag. The MagTag is a 2.9" grayscale E-Ink display that can show data on its screen even when power is removed.

If your application sends emails to confirm new accounts, reset user passwords, or handle billing and invoicing, then it’s sending transactional emails. This kind of functionality is extremely common, so naturally there are a lot of vendors that provide these services. But which transactional email API is right for your application?

In this series, I explain how to use Twitch EventSub and Courier to automatically send notifications to multiple destinations – Slack, Discord, and more – when your Twitch stream goes live. In part one, we built a Node.js app using Express.js to accept events from Twitch EventSub. In part two, we listened for our event and triggered a notification using Courier. Now, in part three, we're going to use Courier’s List API to send multiple notifications when our event is triggered.

A push notification. A bolded channel. A red badge next to an unread conversation. These are all ways that Slack manages your attention. For the messaging giant, managing attention is deeply intertwined with their mission of making work life more productive. Too much noise and suddenly what was an invaluable collaboration hub turns into a distraction. Not enough and it’s just another tool gathering virtual dust.