Mailblock Node.js SDK Launch: The Best Resend Alternative for Sending & Tracking Emails

Today is a good day to send better email. We are officially launching the Mailblock Node.js SDK.

If you have ever wrestled with clunky email APIs, you know the pain. Endless configuration, unclear docs, brittle tracking. We built Mailblock to solve those problems. It is a modern email SDK that helps you send, track, and understand your emails. You get a clean dashboard, built-in analytics, and the confidence that what you send will actually get delivered.

Mailblock is a strong alternative to Resend. The difference is in our focus. We ship features that developers ask for. We listen when something breaks. And we improve without chasing hype. Less pitch. More progress.

TL;DR

Just Check Out our Documentation at: Link

Installation and setup

Getting started takes a couple of minutes.

Install the SDK with npm:

1npm install mailblock

Authenticate using your API key. You can find it in your Mailblock dashboard.

1import { Mailblock } from "mailblock"
2
3const client = new Mailblock({
4  apiKey: process.env.MAILBLOCK_API_KEY,
5})
6

That’s it. You’re ready to send your first email.

Sending and updating emails

Mailblock supports both transactional emails and scheduled updates.

Transactional email

1await client.sendEmail({
2  from: "team@yourapp.com",
3  to: "user@example.com",
4  subject: "Welcome!",
5  text: "Thanks for signing up.",
6})

Update a scheduled email

1const updateResult = await client.updateScheduledEmail(emailId, {
2  subject: "Updated: Weekly Newsletter with Special Offer",
3  body_text: "Updated content with link https://yourcompany.com/special-offer",
4})

This lets you correct or refine content before it goes out, without starting over. Perfect for when details change at the last minute.

You can also create templates in the dashboard and pass variables to personalize content. Every message can be tailored without duplicating code.

Tracking and analytics

Sending is only half the story. You also need to know if your emails are being opened, clicked, or ignored.

Mailblock provides built-in tracking.

Open and click rates are logged automatically.
You can receive real-time event data through webhooks.
All analytics are visible in your dashboard, no extra setup required.

If you want to keep everything inside your own system, you can consume events and push them into your data warehouse or monitoring tools.

Developer experience

We built this SDK for developers who actually write and maintain email code.

Full TypeScript support, so you get autocomplete and type safety.
Error handling with retries baked in. No more silent failures.
Environment-friendly config. Point to a sandbox in development and switch to production when you are ready to go live.

We use Mailblock inside our own apps every day. If something slows us down, we fix it. Built by experience. Shipped with purpose.

Community

Documentation

We welcome feedback, bug reports, and contributions. Open an issue, send a pull request, or just tell us what’s not working for you.

You can follow updates on Twitter, on this blog, and in our newsletter.

Email is a critical part of most products. It should not be painful to set up or impossible to measure. The Mailblock Node.js SDK makes it simpler to send the right email and understand the results.

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Mailblock Node.js SDK