Resend - Send transactional and marketing emails at scale

"Email shouldn't be this hard. That's why Resend exists - to give developers an email API that actually makes sense."

Let's be honest - most email APIs suck. They're clunky, overcomplicated, and make simple tasks feel like solving a Rubik's cube blindfolded. That's where Resend comes in, flipping the script on transactional email.

🚀 Resend in 30 Seconds

Resend is the email API built by engineers, for engineers. It's like if SendGrid and React had a beautifully designed baby focused purely on developer experience. With just a few lines of code, you can:

import { Resend } from 'resend';

const resend = new Resend('re_123456789');

(async function() {
  const { data, error } = await resend.emails.send({
    from: '[email protected]',
    to: '[email protected]',
    subject: 'Hello World',
    html: '<strong>it works!</strong>'
  });
})();

But there's so much more under the hood...

🔥 Why Developers Are Switching to Resend

First-Class DX (Developer Experience)

• SDKs for every language - Node.js, Python, Ruby, Go, Rust, Java, Elixir, .NET
• React Email integration - Build templates without dealing with archaic <table> layouts
• Test Mode - Simulate events without spamming real users
• Webhooks - Real-time notifications for opens, clicks, bounces

Enterprise-Grade Deliverability

• Multi-region sending - Reduce latency by sending from locations closest to your users
• Managed Dedicated IPs - Automatic warmup and scaling based on your volume
• BIMI support - Show your logo in inboxes (the "blue checkmark" for email)
• Dynamic suppression - Automatically stop sending to spam complainers

🏆 How Resend Stacks Up Against SendGrid

💌 Real-World Use Cases

1. Transactional Emails - Password resets, receipts, alerts
2. Marketing Campaigns - Newsletters, promotions
3. User Notifications - Account updates, security alerts

"Resend is transforming email for developers. Simple interface, easy integrations, handy templates. What else could we ask for?" - Guillermo Rauch, CEO at Vercel

🛠 Getting Started

1. Sign up at Resend.com
2. Grab your API key
3. Choose your SDK:

   npm install resend  # Node.js
   pip install resend  # Python
   gem install resend  # Ruby
   

4. Send your first email in <5 minutes

🌟 Why This Matters

In an era where email deliverability can make or break your product, Resend provides:

• 98%+ inbox placement (vs. 85-90% with many providers)
• 300ms average API response time
• Zero maintenance infrastructure

The proof? Companies like Vercel, Outerbase, and Infisical trust Resend with their most critical emails.

📈 The Future of Email APIs

Resend represents a shift in how developers interact with email infrastructure. By focusing on:

• Clean abstractions
• Modern tooling
• Predictable pricing
• Obsessive DX

They're proving that email APIs don't have to be painful. And with their rapid growth (backed by Y Combinator), this is just the beginning.

"I've used Mailgun, Sendgrid, and Mandrill and they don't come close to the developer experience you get with Resend." - Brandon Strittmatter, Co-founder of Outerbase

Ready to stop fighting your email provider? Give Resend a try - your future self will thank you.