Email APIs

Resend pricing in 2026: what does each plan actually cost?

Published 2026-11-05 · Researched and price-checked on official sources

Resend pricing runs $0 for 3,000 emails a month, $20/mo for Pro with 50,000 emails and $90/mo for Scale with 100,000, with extra emails billed at $0.90 per 1,000 on both paid tiers. Above 50,000 emails a month, Pro plus overage costs less than Scale.

Key facts

What matters

Resend's free tier includes 3,000 emails a month, 3 sending domains and a ceiling of 100 emails a day.
Pro is $20/mo for 50,000 emails. Scale is $90/mo for 100,000. Both bill $0.90 per extra 1,000 emails.
At 100,000 emails a month, Pro with pay-as-you-go overage costs $65 against $90 for Scale, a $25 gap that holds at 250,000 emails too.
Dedicated IPs are a $30/mo add-on, restricted to Scale accounts already sending more than 3,000 emails a day.
Postmark and Mailgun both charge $1.30 per extra 1,000 emails on their mid-tier plans, against Resend's $0.90.

What is Resend and what does the bill measure?

Resend is an email API for developers: you hand it a message over HTTP, SMTP or one of its SDKs, and it handles delivery, bounces, inbound routing and event tracking. The company describes itself on its homepage as a way to send transactional and marketing email at scale.

Its pricing meters three things, and nearly every surprise on the invoice comes from the second and third:

Emails sent or received per month, including inbound mail routed into an inbox.
Sending domains, counted per verified domain you send from.
Inboxes, the receiving addresses you create on the account.

Seats are not metered, and the API rate limit is not tied to your plan. Resend's own FAQ states the requests-per-second limit is set per team and is identical on every tier, so upgrading does not buy a faster API. What you are buying at each step is volume, domains and eligibility for add-ons.

Resend's plans, price by price

Three self-serve tiers were live on resend.com/pricing when checked on 5 November 2026, plus an Enterprise contract. Every figure below comes from that page, in US dollars, per month.

Free, $0: 3,000 emails a month, 100 emails a day, 3 domains.
Pro, $20: 50,000 emails a month, 10 domains, extra emails at $0.90 per 1,000.
Scale, $90: 100,000 emails a month, 1,000 domains, extra emails at $0.90 per 1,000.

That identical overage rate is the detail that changes the buying decision, and it is missing from most comparisons of Resend's plans. Scale does not sell cheaper email. It sells domains, a bigger included block and access to add-ons that Pro cannot buy.

The jump from Free to Pro is the one most accounts make, and it is a large one in cash terms: $0 to $240 a year. The jump from Pro to Scale is smaller in volume terms than it looks, because Pro can already bill past 50,000 emails through overage.

Why Pro plus overage beats Scale above 50,000 emails

Run the arithmetic at 100,000 emails a month. Pro covers 50,000 of them and bills the other 50,000 at $0.90 per 1,000, which is $45. Total: $65. Scale covers all 100,000 for $90. Same volume, same sending infrastructure, $25 cheaper on Pro.

Push to 250,000 and the gap does not close. Pro is $20 plus 200 blocks of 1,000 at $0.90, or $200. Scale is $90 plus 150 blocks, or $225. Still $25 apart. That is not a coincidence: Scale's $70 premium buys 50,000 emails that Pro would bill at $45, so the gap is fixed at the difference.

The same ladder, all calculated from Resend's published rates:

10,000 emails: $20 on Pro, everything included.
50,000 emails: $20 on Pro, still inside the allowance.
75,000 emails: $42.50 on Pro.
100,000 emails: $65 on Pro with overage, $90 on Scale.
250,000 emails: $200 on Pro, $225 on Scale.
500,000 emails: $425 on Pro.

Every one of those figures depends on pay-as-you-go being switched on. Without it, Pro stops at its 50,000-email allowance, and the cheap number never materialises.

What extra domains cost, and when Scale earns its premium

Domains are the first real difference between the tiers, and the pricing page sells a workaround. Pro includes 10 domains; if that runs out, Resend offers an add-on at $20/mo for 100 more domains, available on both Pro and Scale.

So a Pro account with the domain add-on sits at $40/mo with a 110-domain allowance. Scale costs $90/mo for 1,000 domains. If the only problem you have is domain count, Pro plus the add-on is running at less than half of Scale, and it covers the common agency pattern of one sending domain per client.

The pricing page describes the add-on as adding 100 domains on top of your plan, but does not state whether those blocks stack. Treat 110 as the number you can count on from a single add-on; past that, Scale's 1,000-domain allowance is the only documented route.

That leaves three features Pro genuinely cannot reach at any volume: more than 110 domains, a dedicated IP, and the single sign-on add-on. Scale's premium is a feature purchase, not a volume discount.

The add-ons that quietly change the bill

Plan price is the floor, not the invoice. These items sit on the same pricing page as separate line items:

Dedicated IP, $30/mo. Available on Scale to customers sending more than 3,000 emails a day. Resend warms up, monitors and autoscales the IP on your behalf.
Extra domains, $20/mo for 100 more. Sold on Pro and Scale when a per-customer or per-brand domain pattern outgrows the included allowance.
Single sign-on, $150/mo. An add-on on Scale, included on Enterprise.
Inboxes, $1 each per month. Every plan includes 3. Extra inboxes bill monthly, and their traffic counts against your transactional quota, so receiving mail is not free capacity.
Automations, $0.0015 per run. The first 10,000 runs are free, then each run bills individually.

Two extra inboxes and an automation flow can add more to a small account's bill than a volume upgrade would. Work out the add-ons before you argue about the tier. A dedicated IP alone costs more per month than a Pro plan, which is why it only makes sense for senders whose daily volume already justifies IP reputation management.

Resend vs Postmark vs Mailgun at 100,000 emails

The overage rate is where developer email pricing actually diverges, because the base plans bundle wildly different volumes. These are the published rates as of 5 November 2026:

Resend Pro: $20/mo for 50,000 emails, $0.90 per extra 1,000. At 100,000 the bill is $65.
Postmark Pro: $16.50/mo for 10,000 emails with the page's volume selector at that level, $1.30 per extra 1,000. At 100,000 the bill is $133.50.
Mailgun Foundation: $35/mo for 50,000 emails, $1.30 per extra 1,000 at that tier. At 100,000 the bill is $100.

Two footnotes on those numbers. Postmark's page states the company has no annual plans yet, so the figures are monthly rates rather than a discounted commitment price. Mailgun advertises Foundation as free for the first month, so $35 is the recurring price after the promo month ends.

On cost per thousand, Resend's $0.90 overage is roughly 31% below the $1.30 that both competitors charge at these tiers. Deliverability tooling is less one-sided: Postmark bundles inbound processing from its Pro tier and Mailgun sells email validation by the block, priced separately at $1.20 per 100 for the first 5,000 validations. Resend's differentiator is the API and event tooling rather than a validation product.

Limits to settle before you commit

Overage is opt-in. Pay-as-you-go is something you enable on a paid subscription, and it is what lets you keep sending past the included volume. If you run a product that can spike on a launch day, turn it on deliberately rather than discovering the quota at 2am.

Inbound counts against outbound. Resend's FAQ states that received email counts toward the transactional quota, and inbox traffic bills the same way. A support inbox on a 50,000-email Pro plan eats the same allowance as password resets.

The free tier is capped daily, not monthly. The 100 emails per day limit applies regardless of how much of the 3,000 monthly allowance is left, and no overage is available on Free.

Enterprise pricing is not public. The page says the domain limit is set in your contract and does not publish a rate. Ask for a quote instead of extrapolating from Scale.

Recent account-side changes

The changelog has moved quickly this quarter: an Account Usage API that returns usage and plan limits from the API (1 October), MCP Server Card support so AI clients can configure the Resend MCP server from a single URL (26 October), and automatic revocation of API keys found in public sources such as Docker images and Hugging Face datasets (4 November). The free tier was also raised to 3 verified domains on 25 August. None of that moves the prices above, but the usage API is the cheapest way to watch an overage bill creeping up.

At a glance

Plan	Price	Emails included	Extra emails	Domains
Free	$0/mo	3,000/mo, 100/day cap	Not available	3
Pro	$20/mo	50,000/mo	$0.90 per 1,000	10
Scale	$90/mo	100,000/mo	$0.90 per 1,000	1,000
Enterprise	Contract	Set in contract	Set in contract	Set in contract

Resend plans as published on resend.com/pricing, 5 November 2026

FAQ

Is Resend free?

There is a free tier with 3,000 emails a month, 3 domains and a 100 emails per day cap. Anything beyond that needs Pro at $20/mo or Scale at $90/mo, per Resend's pricing page.

Is Resend cheaper than Postmark?

On overage rates, yes: Resend charges $0.90 per extra 1,000 emails while Postmark's Pro plan charges $1.30. At 100,000 emails a month that works out to about $65 on Resend Pro with pay-as-you-go against $133.50 on Postmark Pro, calculated from each vendor's published prices.

What happens if I go over my Resend quota?

On a paid plan you can enable pay-as-you-go, which bills extra volume at $0.90 per 1,000 emails in blocks of 1,000. Without it enabled, the plan's included volume is the limit you are working to.