How to Build Apps That Send Emails with Create + Resend

If you're building an app in 2025 and not sending emails, you're leaving value on the table.

Email is still one of the most reliable ways to engage users, confirm actions, and close feedback loops. And now, thanks to the Resend + Create integration, sending emails from your app isn’t just possible; it’s fast, flexible, and actually enjoyable.

Whether you're a solo maker, part of a lean startup team, or just exploring what's possible with no-code/low-code tools, this setup is built for speed and power.

Let’s break down what’s possible and why you should build your next email-powered app with this combo.

Why Email Still Wins

Email isn’t just a feature; it’s infrastructure.

Every serious app eventually needs a way to notify users: confirmations, alerts, summaries, or even just simple reminders.

And here’s the thing:

• Email works. It’s universal. No downloads.
• It scales. You don’t need to manage webhooks or set up a notification center.
• It engages. A well-timed email can bring a user back, convert a lead, or prevent churn.

With Resend, you get a clean, developer-first experience for sending reliable, high-deliverability emails. And with Create, you get a visual, programmable canvas to define how your app behaves; no servers, no ops.

Together, you get a powerful, instant way to send emails from any workflow you build.

Introducing the Create + Resend Integration

Now you can send emails right inside your app without writing any complex code.

With the new Resend block inside Create, it’s super easy to add email to your workflows. Think of it like this: whenever something happens in your app (like someone fills out a form, a task finishes, or an AI workflow completes), you can send an email automatically.

You can do all that and more just by dragging and connecting the Resend block in your Create app.

Here’s a quick video that shows you exactly how it works:

What You Can Build (Real Use Cases)

The integration isn’t just cool; it’s practical. Here are real examples you could build today:

1. Feedback to Inbox

Build a form in Create → route responses straight to your email using Resend.

2. Lead Follow-Up

Capture leads from a landing page and instantly send a custom welcome email.

3. App Notifications

Automate status updates: “Your report is ready.” “Your order has shipped.” You name it.

4. Internal Tools

Send alerts to your team when certain actions are triggered in your app. No Slack bots or webhook juggling.

5. Daily or Weekly Summaries

Trigger digest-style emails using scheduled workflows; Resend handles the delivery.

You’re not limited to simple emails either. You can send dynamic content, pull in data from other blocks, and personalize everything down to the subject line.

Basically, if your app needs to say something, this combo gives it a voice.

How the Integration Works (takes less than 10 minutes)

Here’s how to plug Resend into your Create workflow:

1. Add the Resend block to any Create workflow
2. Connect your Resend API key (it’s secure and straightforward)
3. Set your email parameters (To, From, Subject, HTML/Text Body)
4. Trigger the block based on any user interaction or app logic
5. Done. Emails go out like clockwork.

You can find a full walkthrough in this guide from Create or explore Resend’s own write-up for extra context.

And yes, this works with custom domains, branded sender names, and all the pro-level features you'd expect.

Why Developers Love It

Here’s what sets this apart from other “email integration” options:

• Zero setup. No environment variables. No deployment.
• Visual-first. You build logic visually, but it compiles down to code you can reason about.
• Fast iteration. Build → test → send. It’s real-time.
• Scales with you. Start small. Expand to workflows, automations, and full product logic.

If you've ever written a sendEmail() function and wired it to a button, this is that but smarter and 10x faster.

Conclusion

Building workflows is one thing.

Building workflows that respond, notify, and engage, that’s next level.

Resend + Create lets you do just that. It turns every action in your app into a potential conversation starter with your users, your team, or anyone you need to keep in the loop.

No backends. No messy integrations. Just clear, fast, action-triggered email sending built right into your flow.

Integrate now → Create