Resend vs Postmark (2026): deliverability vs developer experience

Resend vs Postmark: side by side

Free tier, entry price, dedicated-IP cost and deliverability — pulled from each vendor's own pricing page. Sort any column; star a provider to watch it.

Resend: current pricing

What you actually pay on Resend today, for context. Source: https://resend.com/pricing.

Postmark: current pricing

What you actually pay on Postmark today, for context. Source: https://postmarkapp.com/pricing.

Resend or Postmark?

Postmark and Resend solve the same problem from different angles. Postmark has spent years optimizing for transactional deliverability: separate message streams for transactional and bulk mail, fast send times, and a reputation for landing in the inbox. That focus comes with a small free tier of just 100 emails per month, then $15/mo for 10,000 on the Basic plan.

Resend approaches the problem as a developer-experience product. Its 3,000 emails/mo free tier is far more generous for early projects, and its type-safe SDK plus React Email templates make it the smoothest fit for Next.js. Paid plans start at $20/mo for 50,000 emails, and a dedicated IP is available at $30/mo on Scale.

The decision usually comes down to risk tolerance on a few critical emails. If a missed password reset or invoice is a serious problem, Postmark's deliverability focus is worth the smaller free allowance. If you are building quickly, want to stay free while you find product-market fit, and value an ergonomic SDK, Resend is the better starting point — and you can revisit Postmark later for the specific streams where inbox placement is non-negotiable.

Switch to Resend in one Route Handler

Most migrations are a one-call change. Here's the Next.js Route Handler for each top alternative.

import { Resend } from "resend";

const resend = new Resend(process.env.RESEND_API_KEY!);

export async function POST(req: Request) {
  const { to, subject, html } = await req.json();
  const { data, error } = await resend.emails.send({
    from: "noreply@yourdomain.com",
    to,
    subject,
    html, // was: sgMail.send({ to, from, subject, html })
  });
  if (error) return Response.json({ error }, { status: 500 });
  return Response.json({ id: data?.id });
}

The free tier you're reading will change

It already has. StackPulse records every pricing move so you're never surprised — here's what changed in this category recently.

Questions, answered