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Comparison

The best Resend alternatives

Resend made the developer email API pleasant again. People still leave it — for price, for a European region, for source code they can read, or because transactional volume and marketing contacts arrive as two separate bills.

Sixteen alternatives below, each with what it costs, what its free tier really gets you, and what it is bad at. We make one of them. It's marked, and the things it doesn't do are listed alongside everything else.

16 options Prices checked 2 August 2026 No affiliate links
The short answer

Pick by the reason you're leaving

Nobody replaces an email API in the abstract. Something specific broke. Start from that, not from a feature matrix.

Cheapest per emailAmazon SES

$0.16 per 1,000. You build the dashboard, the templates and the retries yourself.

Best deliverability recordPostmark

Separate message streams, retention up to a year, and support staffed by people who know email.

Best open sourceuseSend

A Resend-shaped dashboard over your own Amazon SES account. AGPL-3.0, still beta.

Best EU optionAhaSend

European infrastructure that keeps the data in Europe, not just the sending.

Best when you also send campaignsEmail Bump

Marketing and transactional on one contact-priced plan instead of two subscriptions. That's us.

Context

What actually goes wrong with Resend

Resend is a good product, and most of these complaints are the cost of the choices that make it good. It is worth being precise about them, because each one points at a different replacement.

It bills marketing and transactional separately. Resend's own documentation splits pricing into two tracks: transactional plans priced on emails sent and received, and marketing plans priced on contacts. A product with 25,000 subscribers and 50,000 monthly transactional emails is buying both — $180/mo for the contacts plus $20/mo for the volume. That's the single most common reason people start looking, and it is the reason we built one contact-priced plan that covers both.

Overage is automatic. Past your allowance, Resend charges per extra bucket of 1,000 emails against the card on file. That's a defensible design — nobody wants their password resets to stop — but it means a launch week shows up on the invoice rather than in a "you've hit your limit" email.

Retention is 30 days on every plan. Including Scale. If a customer disputes an email from last quarter, the record is gone. Postmark sells retention up to 365 days; several self-hosted options keep whatever your disk holds.

There's no EU region. For a lot of European teams this is the whole conversation, and no amount of DPA paperwork substitutes for the data sitting in Frankfurt.

It's transactional-first by design. The marketing side is real but younger, and if you want behavioural segments and multi-step journeys you will feel the difference against a platform built for that.

The baseline

What Resend costs, from their own pricing page

Everything below is compared against these numbers, read on 2 August 2026.

Transactional — priced on emails

Volume plans

$0
3,000 emails/moFree — capped at 100 emails/day, 1 domain
$20/mo
50,000 emails/moPro — $0.90 per extra 1,000
$35/mo
100,000 emails/moPro — $0.90 per extra 1,000
$90/mo
100,000 emails/moScale — better overage, 1,000 domains
$350/mo
500,000 emails/moScale — $0.70 per extra 1,000
$1,150/mo
2,500,000 emails/moScale — $0.46 per extra 1,000
Marketing — priced on contacts

Contact plans

$0
1,000 contacts
$40/mo
5,000 contacts
$80/mo
10,000 contacts
$120/mo
15,000 contacts
$180/mo
25,000 contacts
$250/mo
50,000 contacts
$450/mo
100,000 contacts
$650/mo
150,000 contacts
Worth knowing

The fine print

  • 30-day data retention on every plan, including Scale.
  • Marketing contacts and transactional volume are billed as two separate subscriptions.
  • 10,000 automation runs a month are included on Free and Pro; beyond that runs are metered.
  • Dedicated IP is a $30/mo add-on, available to Scale customers sending over 3,000 emails a day.
  • Sending domains are capped by plan: 1 on Free, 10 on Pro, 1,000 on Scale.
Worked example

25,000 subscribers, 50,000 transactional emails a month

A normal shape for a SaaS with a newsletter. Both figures come from each vendor's published list price; neither includes overage.

Resend$200/mo

$180/mo for the 25,000-contact marketing plan, plus $20/mo for the 50,000-email Pro transactional plan. Two subscriptions, two allowances.

Email Bump$29/mo

25,000 contacts. Campaigns, automated flows, segments, the transactional API and SMTP are the same plan, and sending is uncapped under fair use.

Amazon SES~$8/mo

50,000 emails at $0.16 per 1,000 is $8, and there is no contact model at all — you'd be building the campaign side yourself.

List prices on 2 August 2026. The SES figure is sending cost only and excludes the engineering time to build everything around it.

Side by side

All sixteen, on the five things that decide it

ProviderStarts atFree tierMarketing emailLicenceData region
Email BumpHosted$19/mo at 10,000 contacts5,000 contacts and 5,000 emails a monthIncluded — campaigns, flows, segments and the API share one billProprietaryUnited States (Amazon SES, us-east-1)
PostmarkHosted$15/mo for 10,000 emails (Basic)100 emails a monthBroadcast streams only — 15 on Basic, 30 on Pro, unlimited on Platform. No visual automation builder.ProprietaryUnited States
Amazon SESHosted$0.16 per 1,000 emails (Essentials, first 10M/mo)Up to $200 in AWS free-tier credits for new accounts, over the first 6 monthsNone. SES is a sending pipe.ProprietaryYour choice of AWS region, including several in the EU
LoopsHostedPaid plans are priced by subscribed contacts via a slider, not published as a fixed table1,000 contacts and 4,000 sends a month, with a Loops footer on your emailIncluded — that's the core of the productProprietaryUnited States
MailgunHosted$15/mo for 10,000 emails (Basic)100 emails a day, with 1-day log retentionSold separately as Mailgun Optimize / Mailjet rather than bundledProprietaryUnited States or European Union, per account
MailtrapHosted$15/mo for 10,000 emails (Basic)4,000 emails a month, capped at 150 a day, 3 days of logsBulk stream on Business and above; no journey builderProprietaryUnited States, with EU sending available
MailerSendHosted$5.60/mo for 5,000 emails (Hobby)500 emails a month, 1 domain, 1 templateTemplates and basic automation; MailerLite is the sibling product for campaignsProprietaryUnited States and European Union
Zoho ZeptoMailHostedCredits, where 1 credit = 10,000 emails, valid 6 monthsFirst credit free — 10,000 emails, valid for one monthNone. ZeptoMail is transactional-only by policy; Zoho Campaigns is the other product.ProprietaryMultiple, including EU data centres
AhaSendHostedPaid tiers start at 25,000 emails/mo (Pro); the rate isn't published as a flat figure1,000 emails a month, unlimited domains, no card requiredTransactional focus; no campaign builderProprietaryEuropean Union, multi-region
Scaleway TEMHosted€0.25 per 1,000 emails after the first 300 a month (Essential)300 emails a month, every monthProhibited by policy — TEM is transactional onlyProprietaryEuropean Union (multi-region, France-headquartered)
useSend (formerly Unsend)Self-hostableFree to run; you pay Amazon SES for the sendingSelf-hosted — the software is freeIncluded: contacts, campaigns and transactional in one appAGPL-3.0Wherever you deploy it
PlunkSelf-hostableSelf-host free, or $0.001 per email on Plunk CloudSelf-hosted — the software is freeIncluded: campaigns plus a trigger-and-condition automation builderAGPL-3.0Wherever you deploy it
FreeResendSelf-hostableFree to run; you pay Amazon SES for the sendingSelf-hosted — the software is freeNone — transactional onlyMITWherever you deploy it
NotifuseSelf-hostableSelf-host free, or Notifuse Cloud from $16/moSelf-hosted — the software is freeIncluded: visual builder, scheduling, A/B tests, segmentationAGPL-3.0Wherever you deploy it
listmonkSelf-hostableFree to run; you pay your SMTP provider for the sendingSelf-hosted — the software is freeThat's the whole product: lists, subscribers, campaigns, templatesAGPL-3.0Wherever you deploy it
PostalSelf-hostableFree to run; you pay for servers and IPsSelf-hosted — the software is freeNone; it's infrastructureMITWherever you deploy it

Read off each vendor's own pricing or documentation page on 2 August 2026. Where a vendor hides a price behind a slider or a sales call, the cell says so instead of guessing.

In detail

Every option, and what it's bad at

Ordered by how often each answers the reason people search for this in the first place, not by how much we'd like you to click.

01Hosted service

Email Bump

Best for: Teams paying Resend twice — once for the API, again for the newsletter

Marketing and transactional email in one product, billed on contacts rather than sends. The transactional API takes the same fields as Resend's, so the migration is a base URL and a key. Also the only one on this list with a first-class CLI and MCP server, so an agent can run the whole account without a browser.

Starts at
$19/mo at 10,000 contacts
Free tier
5,000 contacts and 5,000 emails a month
Marketing
Included — campaigns, flows, segments and the API share one bill
Data region
United States (Amazon SES, us-east-1)
What it does well
  • One price covers campaigns, automated flows, segments and the transactional API.
  • Sending is uncapped on paid plans under fair use — a viral week doesn't produce an overage bill.
  • Unsubscribed and bounced contacts stop counting, so the bill tracks your real audience.
  • Unlimited team seats and unlimited sending domains on every plan, including free.
  • CLI, MCP server and agent skills cover the same surface as the API, including creating the account itself.
  • Inbound email, SMTP on the same key, and webhooks are part of the plan, not upsells.
What to watch for
  • Sending is US-only today — there is no EU data region.
  • Not open source, and there's no self-hosted build.
  • The free plan puts a 'Powered by Email Bump' badge on marketing footers. Transactional sends never carry it.
  • Younger than Postmark or SendGrid, without their decade-plus of public deliverability history.
02Hosted service

Postmark

Best for: Transactional mail where a receipt arriving late is a support ticket

The long-standing deliverability specialist. Separate message streams keep transactional and broadcast reputation apart, retention goes to a year, and support answers with an engineer rather than a bot.

Starts at
$15/mo for 10,000 emails (Basic)
Free tier
100 emails a month
Marketing
Broadcast streams only — 15 on Basic, 30 on Pro, unlimited on Platform. No visual automation builder.
Data region
United States
What it does well
  • Deliverability track record is the longest of anything on this list.
  • Retention is customisable up to 365 days on Pro and Platform, against Resend's flat 30 days.
  • Inbound email processing on Pro and above.
  • Support is a genuine differentiator, not a plan checkbox.
What to watch for
  • Overage is $1.80 per 1,000 on Basic — twice Resend's $0.90 — so bursts get expensive.
  • Broadcasts are a stream, not a marketing tool: no segments, no journeys.
  • Dedicated IPs start at $50/mo per IP.
03Hosted service

Amazon SES

Best for: High volume where you already have engineers to own the plumbing

The wholesale layer most of this list resells. Nothing is cheaper per email, and nothing asks more of you: no dashboard worth the name, no templates, no contact model, no suppression UI beyond the basics.

Starts at
$0.16 per 1,000 emails (Essentials, first 10M/mo)
Free tier
Up to $200 in AWS free-tier credits for new accounts, over the first 6 months
Marketing
None. SES is a sending pipe.
Data region
Your choice of AWS region, including several in the EU
What it does well
  • $0.16 per 1,000 is roughly a fortieth of Resend's Pro rate at the same volume.
  • Regions everywhere, so data residency is a config value.
  • Scales past anything a SaaS plan will sell you.
What to watch for
  • You build the dashboard, the templates, the retries, the suppression list and the reporting.
  • New accounts start in a sandbox; production access and quota increases are reviewed.
  • Attachments are billed separately at $0.12/GB, and deliverability tooling costs extra.
04Hosted service

Loops

Best for: SaaS teams who want lifecycle email without assembling it

Contact-priced like Email Bump, with transactional sending folded in at no extra charge. Opinionated and pleasant; less of an infrastructure product than Postmark or SES.

Starts at
Paid plans are priced by subscribed contacts via a slider, not published as a fixed table
Free tier
1,000 contacts and 4,000 sends a month, with a Loops footer on your email
Marketing
Included — that's the core of the product
Data region
United States
What it does well
  • Transactional sending is included rather than billed as a second subscription.
  • Free plan is generous enough to run a small product on.
  • Genuinely quick to set up.
What to watch for
  • The free plan puts Loops branding in your footer and caps you at 10 emails/second.
  • Paid pricing lives behind a slider, which makes budgeting a guess until you sign up.
  • Thinner on raw email infrastructure — inbound, SMTP nuance, deep log retention.
05Hosted service

Mailgun

Best for: Teams that need an EU sending region from a large, established vendor

A veteran developer email API, now part of Sinch. US or EU sending from one account, plus validation and deliverability services sold alongside.

Starts at
$15/mo for 10,000 emails (Basic)
Free tier
100 emails a day, with 1-day log retention
Marketing
Sold separately as Mailgun Optimize / Mailjet rather than bundled
Data region
United States or European Union, per account
What it does well
  • EU region on an established platform with real support contracts.
  • Scale at $90/mo for 100,000 emails includes a dedicated IP.
  • Email validation and deliverability tooling available as add-ons.
What to watch for
  • Log retention is 1 day on Free and Basic, 5 days on Foundation — painful when debugging.
  • $1.80 per 1,000 overage on Basic.
  • Extra dedicated IPs are $59 each per month.
06Hosted service

Mailtrap

Best for: Teams who want the test sandbox and production sending from one vendor

Best known for its email-testing sandbox, which catches staging mail before it reaches a real inbox. The sending product grew out of that and keeps the same debugging bias.

Starts at
$15/mo for 10,000 emails (Basic)
Free tier
4,000 emails a month, capped at 150 a day, 3 days of logs
Marketing
Bulk stream on Business and above; no journey builder
Data region
United States, with EU sending available
What it does well
  • The staging sandbox has no real equivalent at Resend.
  • Free tier is 4,000 emails/month against Resend's 3,000.
  • Bounce categorisation and per-domain debugging are unusually good.
What to watch for
  • Log retention is short on cheaper plans: 3 days free, 5 days on Basic.
  • Dedicated IP and bulk stream only arrive on Business, which starts at $85/mo.
  • Two products in one console takes a minute to get used to.
07Hosted service

MailerSend

Best for: Small teams who want the cheapest paid tier with a template builder

From the MailerLite family. Drag-and-drop templates non-engineers can edit, an inexpensive entry plan, and SMS bolted on for the same money.

Starts at
$5.60/mo for 5,000 emails (Hobby)
Free tier
500 emails a month, 1 domain, 1 template
Marketing
Templates and basic automation; MailerLite is the sibling product for campaigns
Data region
United States and European Union
What it does well
  • $5.60/mo for 5,000 emails is the cheapest real paid plan here.
  • Non-developers can edit templates without a pull request.
  • 100 SMS a month included on every plan.
What to watch for
  • Free plan is 500 emails/month — a sixth of Resend's free tier.
  • Hobby caps you at 1 domain, 3 templates and 1,000 API requests a day.
  • API log retention is 7 days even on Professional.
08Hosted service

Zoho ZeptoMail

Best for: Low, spiky transactional volume you'd rather not subscribe for

Pay-as-you-go credits instead of a monthly plan. One credit is 10,000 emails and lasts six months, which suits products that send in bursts.

Starts at
Credits, where 1 credit = 10,000 emails, valid 6 months
Free tier
First credit free — 10,000 emails, valid for one month
Marketing
None. ZeptoMail is transactional-only by policy; Zoho Campaigns is the other product.
Data region
Multiple, including EU data centres
What it does well
  • No subscription: buy credits, use them within six months.
  • 10,000 free emails to evaluate with is the largest trial on this list.
  • Backed by Zoho, with EU data-centre options.
What to watch for
  • Strictly transactional — marketing sending will get the account closed.
  • Being inside the Zoho console is a taste thing.
  • Credits expire; unused volume is money gone.
09Hosted service

AhaSend

Best for: EU teams who want Resend's ergonomics with the data kept in Europe

The closest thing to a European Resend: same shape of API and SMTP, multi-region EU infrastructure, and a free tier you can actually ship on.

Starts at
Paid tiers start at 25,000 emails/mo (Pro); the rate isn't published as a flat figure
Free tier
1,000 emails a month, unlimited domains, no card required
Marketing
Transactional focus; no campaign builder
Data region
European Union, multi-region
What it does well
  • Data stays in Europe, not just the sending — the usual gap in 'EU-friendly' claims.
  • Unlimited sending domains even on the free plan.
  • USD and EUR billing, OIDC SSO on the top tier.
What to watch for
  • Smaller company; fewer public deliverability case studies.
  • No marketing or automation side at all.
  • Retention is 14 days on Pro, 30 on Max.
10Hosted service

Scaleway TEM

Best for: French and EU public-sector-adjacent teams who need sovereignty on paper

European cloud infrastructure rather than a developer-experience product. Cheap per email, GDPR-clean by construction, and deliberately narrow.

Starts at
€0.25 per 1,000 emails after the first 300 a month (Essential)
Free tier
300 emails a month, every month
Marketing
Prohibited by policy — TEM is transactional only
Data region
European Union (multi-region, France-headquartered)
What it does well
  • €0.25 per 1,000 undercuts every hosted SaaS here except SES.
  • European sovereignty story is the strongest on this list.
  • Scale plan at €80/mo includes 100,000 emails, a managed dedicated IP and a 99.9% SLA.
What to watch for
  • Marketing email is against the acceptable-use policy — this is not a newsletter tool.
  • No inbound email support.
  • Billing counts recipients, so one message with three CCs is four emails.
11AGPL-3.0

useSend (formerly Unsend)

Best for: Self-hosters who want a Resend-shaped dashboard on top of their own SES account

The best-known open-source answer to this search. It wraps Amazon SES with a dashboard, contacts, campaigns and webhooks, so you pay AWS rates and keep the UI.

Starts at
Free to run; you pay Amazon SES for the sending
Free tier
Self-hosted — the software is free
Marketing
Included: contacts, campaigns and transactional in one app
Data region
Wherever you deploy it
What it does well
  • SES pricing with a real interface on top.
  • Transactional and marketing, REST API and SMTP, webhooks and inbound.
  • Docker images and a one-click Railway deploy.
What to watch for
  • Still described as beta by its own maintainers.
  • Bring your own AWS account, DNS, Postgres and Redis — and your own on-call.
  • AGPL-3.0 has real obligations if you build a product on top of it.
12AGPL-3.0

Plunk

Best for: Open-source teams who want campaigns and automation, not just an API

Transactional sending, newsletters and a workflow automation builder in one AGPL codebase, with a hosted pay-as-you-go option if you'd rather not run it.

Starts at
Self-host free, or $0.001 per email on Plunk Cloud
Free tier
Self-hosted — the software is free
Marketing
Included: campaigns plus a trigger-and-condition automation builder
Data region
Wherever you deploy it
What it does well
  • Automation flows out of the box, which most open-source options lack.
  • $0.001/email hosted pricing is genuinely pay-as-you-go — no monthly floor.
  • SMTP relay, so existing tooling keeps working.
What to watch for
  • Smaller ecosystem than the commercial APIs; fewer integrations.
  • AGPL-3.0 again — read it before embedding.
  • Self-hosting means owning deliverability, which is the hard part.
13MIT

FreeResend

Best for: Getting off Resend without touching application code

A deliberately narrow project: a self-hosted server that speaks Resend's API. Point the official Resend SDK at it with RESEND_BASE_URL and your sends go through your own SES account instead.

Starts at
Free to run; you pay Amazon SES for the sending
Free tier
Self-hosted — the software is free
Marketing
None — transactional only
Data region
Wherever you deploy it
What it does well
  • Drop-in: the official Resend Node SDK works against it unchanged.
  • MIT licensed, so no AGPL obligations.
  • Optional DigitalOcean integration creates the DNS records for you.
What to watch for
  • Small project — a few hundred stars and a short commit history. Read the code before you depend on it.
  • Needs Amazon SES, PostgreSQL and Node 18+ that you operate.
  • No campaigns, no contacts, no automation.
14AGPL-3.0

Notifuse

Best for: Self-hosters who want a visual builder and to keep their existing sending provider

Go and React, AGPL, and provider-agnostic: it drives SES, Mailgun, Postmark, Mailjet, SparkPost or plain SMTP rather than replacing them. Campaigns, A/B tests and segmentation on top.

Starts at
Self-host free, or Notifuse Cloud from $16/mo
Free tier
Self-hosted — the software is free
Marketing
Included: visual builder, scheduling, A/B tests, segmentation
Data region
Wherever you deploy it
What it does well
  • Bring your own delivery provider — switching costs you a config change, not a migration.
  • Liquid templating, REST API and webhooks for the developer side.
  • A hosted tier exists if self-hosting stops being fun.
What to watch for
  • You still need a sending provider underneath; this is the layer above it.
  • Younger and smaller than listmonk.
  • AGPL-3.0.
15AGPL-3.0

listmonk

Best for: Newsletters at volume, on hardware you already pay for

A single Go binary and a Postgres database that will happily push millions of newsletters through whatever SMTP you point it at. Mature, fast, and unapologetically list-first.

Starts at
Free to run; you pay your SMTP provider for the sending
Free tier
Self-hosted — the software is free
Marketing
That's the whole product: lists, subscribers, campaigns, templates
Data region
Wherever you deploy it
What it does well
  • The most established project here — over 22,000 GitHub stars and years of production use.
  • One binary plus Postgres. No Redis, no queue broker, no Kubernetes.
  • Handles very large lists on modest hardware.
What to watch for
  • It is not a transactional email API product — that's not what it's for.
  • Bring your own SMTP and your own deliverability.
  • The admin UI is functional rather than beautiful.
16MIT

Postal

Best for: Running your own mail server on purpose

Not an SES wrapper — a complete MTA that sends and receives. If you want to own the IPs, the queues and the reputation, this is the mature option.

Starts at
Free to run; you pay for servers and IPs
Free tier
Self-hosted — the software is free
Marketing
None; it's infrastructure
Data region
Wherever you deploy it
What it does well
  • MIT licensed, ~16,700 stars, years of production use.
  • Sends and receives — a full mail platform, not a relay.
  • Total control over IPs and routing.
What to watch for
  • You now own IP warm-up, blocklist removals and abuse handling. This is a job, not a weekend.
  • Needs a database, a message queue and correctly configured DNS.
  • Nobody to call at 3am when Gmail starts deferring you.
Migration

What moving off Resend actually involves

The send call is the smallest part. Here it is against Email Bump — same field names, different host and key.

Beforeapi.resend.com
// Resend
await fetch("https://api.resend.com/emails", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.RESEND_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    from: "Acme <orders@acme.com>",
    to: "jamie@example.com",
    subject: "Your order has shipped",
    html: "<h1>On the way</h1>",
  }),
})
Afteremailbump.com
// Email Bump
await fetch("https://emailbump.com/api/v1/emails", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.EMAILBUMP_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    from: "Acme <orders@acme.com>",
    to: "jamie@example.com",
    subject: "Your order has shipped",
    html: "<h1>On the way</h1>",
  }),
})
  • from, to, subject, html, text, reply_to, attachments and scheduled_at all keep their names.
  • A one-element array for to is accepted, so ported clients don't need editing.
  • One recipient per call. There's no cc or bcc on the API — send those over SMTP with the same key.
  • The response id works with GET /v1/emails/{id}, which returns the delivery, open, click and bounce events.

What takes the actual day is everything around the call. You re-verify each sending domain with new DKIM records and wait on DNS. You export your suppression list and import it before the first send, because a bounce you already know about is not worth learning twice. You point webhooks at the new signing secret. And if you were on a dedicated IP, you warm the new one rather than moving the whole volume on a Monday.

Run both in parallel for a week if you can. Send the low-stakes traffic through the new provider first — receipts before password resets — and keep the old key alive until the delivery numbers agree.

If you need an EU region

The European options, honestly

Resend sends from the United States, and so do we. If your requirement is that email data lives in Europe rather than merely being covered by a DPA, this section is the part of the page that helps you and the part that costs us the sale.

AhaSend is the closest replacement in feel — same shape of API and SMTP, multi-region European infrastructure, 1,000 emails a month free with unlimited domains. Scaleway TEM is the sovereignty answer: €0.25 per 1,000 after 300 free a month, French-headquartered, and explicitly transactional-only, so don't plan a newsletter on it. Mailgun offers an EU region on a large established platform if procurement wants a name they recognise. MailPace and Lettermint are smaller European providers that come up repeatedly in this search for good reason.

One caution that applies to all of them: "EU sending" and "EU data residency" are different claims. Ask where the message content, the event log and the suppression list are stored, not just which IP the mail left from.

FAQ

Resend alternatives, asked and answered

What is the best alternative to Resend?

It depends on which part of Resend stopped fitting. If the bill is the problem because you pay for transactional volume and marketing contacts separately, a contact-priced platform like Email Bump or Loops collapses that into one number. If deliverability and support are the problem, Postmark. If you want to own the stack, useSend or Plunk. If you need European data residency, AhaSend or Scaleway TEM. If you have engineers and volume, Amazon SES is a fortieth of the price and none of the product.

There is no single best answer, which is why the table below compares them on price, free tier, marketing capability, license and region rather than declaring a winner.

Is there a free alternative to Resend?

Several, and they differ more than the headline numbers suggest. Mailtrap gives you 4,000 emails a month against Resend's 3,000, but caps you at 150 a day. MailerSend gives 500. AhaSend gives 1,000 with unlimited domains. Email Bump's free plan is 5,000 contacts and 5,000 emails a month, which covers campaigns and the API together. Self-hosted options are free as software but you still pay a sending provider underneath.

The free-tier comparison page works through the limit that actually bites on each one.

Is there an open-source Resend alternative?

Yes. useSend (formerly Unsend) is the closest in spirit — AGPL-3.0, wraps Amazon SES, ships a dashboard with contacts and campaigns. Plunk adds automation flows. FreeResend is MIT and speaks Resend's own API, so the official Resend SDK works against it unchanged. Notifuse sits above your existing provider. listmonk and Postal are the veterans, for newsletters and full mail serving respectively.

The self-hosting page covers what each one actually asks of you, including the part nobody advertises: deliverability becomes your job.

Why is Resend's bill higher than expected?

Usually one of three reasons. Transactional volume and marketing contacts are billed as two separate plans, so a product that sends both pays twice. Overage is charged automatically per 1,000 emails once you pass the plan's allowance, so a launch week can move the bill without you changing plans. And automation runs beyond the included 10,000 a month are metered separately.

None of that is hidden — it's on their pricing page — but it does mean the number you budgeted for is the floor rather than the total.

How hard is it to migrate off Resend?

The transactional call is the easy part. Email Bump's send endpoint takes the same field names — from, to, subject, html, text, reply_to, attachments, scheduled_at — so in most codebases you change a base URL and an API key. FreeResend goes further and implements Resend's API exactly, so the official SDK works unchanged.

The real work is the same wherever you go: re-verify your sending domains with new DKIM records, move your suppression list, and warm up if you're on a dedicated IP. Budget a day, not a sprint.

Does Resend have an EU region?

Resend sends from the United States. Teams with a GDPR-driven requirement to keep email data in Europe generally land on AhaSend, Scaleway TEM, Mailgun's EU region, or MailPace and Lettermint among the smaller European providers.

Email Bump is US-only today, so if EU residency is a hard requirement we are not the answer — that section below names the ones that are.

Try the one we make

One plan for the API and the newsletter

5,000 contacts and 5,000 emails free, no card. The transactional endpoint takes the same fields Resend's does, so the port is a base URL and a key.

Start free Read the API docs

Keep reading

Open source & self-hostedThe AGPL and MIT projects, and what running one really costs you.Free alternativesEvery free tier compared on the limit that bites first.Email Bump vs ResendThe head-to-head, including the numbers that don't flatter us.Email Bump pricingWhat contact-based pricing costs at every list size.