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99.99% API uptime

The email API
built for developers

Send transactional and marketing email through one API that reaches the inbox — not the spam folder. Quick to integrate, easy to debug, and ready for whatever volume comes next.

Get started Documentation Free for your first 3,000 emails a month.
DELIVERY RATE
Tracing every hop from request to inbox
DELIVERY EVENTS
INBOUND
LATENCY

Companies of every size trust iemails with the emails that matter most — from first signup to millionth receipt.

Explore Enterprise
Northwind Halide Fieldset Kestrel Marlow Tidewell Quanta Orbitly Cobalt Lumen Northwind Halide Fieldset Kestrel Marlow Tidewell Quanta Orbitly Cobalt Lumen
Integrate

Go live this afternoon
in the stack you already use

A clean REST API and official SDKs for every major language. Pick yours, copy the snippet, add your API key — your first email is on its way.

Official SDKs
send.ts Node.js SDK View on GitHub
Works with Next.jsRemixNuxtExpressHonoBunAstro
1import { IEmails } from 'iemails';
2
3const mail = new IEmails(process.env.IEMAILS_KEY);
4
5await mail.emails.send({
6 from: 'Acme <[email protected]>',
7 to: '[email protected]',
8 subject: 'Confirm your account',
9 react: <ConfirmEmail name="Sam" />,
10});
200 OK · 38 msIdempotentAutomatic retriesBatch up to 100 per call
Developer experience

A developer experience
that feels obvious

We're engineers building the email platform we always wanted to use — one that simply works, so you can get back to your product.

Delivered
HTTP 200:{ "id": "2ca4db3a-e209-4618-ab02-fd189d811665" }
HTTP 200:{ "id": "5c0963a3-e9bf-41f4-a51f-f17188d6e834" }
HTTP 200:{ "id": "ce909ab6-eda7-4670-8871-6aa38ee56110" }
HTTP 200:{ "id": "13359f77-466e-436d-9cb2-ff0b0c9a8af4" }
HTTP 200:{ "id": "8e1d73b4-ebe1-485d-bce8-0d7044f1d879" }
Test mode

Simulate deliveries, bounces and complaints against safe test addresses — explore the API without ever emailing a real person by mistake.

Learn more
Bounced Oct 08 08:47:11
to [email protected] with type Hard bounce
on agent Gmail running on macOS
Complained Oct 08 08:47:08
to [email protected] with feedback Spam
on agent Proton running on Android
Delivered Oct 08 08:46:52
to [email protected] with subject Your receipt
on agent Gmail running on iOS
Clicked Oct 08 08:46:30
by [email protected] on link /pricing
on agent Apple Mail running on macOS
Bounced Oct 08 08:47:11
to [email protected] with type Hard bounce
on agent Gmail running on macOS
Complained Oct 08 08:47:08
to [email protected] with feedback Spam
on agent Proton running on Android
Delivered Oct 08 08:46:52
to [email protected] with subject Your receipt
on agent Gmail running on iOS
Clicked Oct 08 08:46:30
by [email protected] on link /pricing
on agent Apple Mail running on macOS
Modular webhooks

Get real-time events on your own server whenever an email is delivered, opened, clicked or bounced. Subscribe only to what you need.

Learn more
Broadcasts

Write in a visual editor
anyone on your team can use

A modern editor that makes writing, formatting and sending email easy for everyone — not just engineers. Build visually, then make it yours with custom styles.

Styles Acme product update — October Test Send
From[email protected]
ToNewsletter subscribers · 8,214
SubjectFive things we shipped this month
Drop a newsletter header image
Five things we shipped in October
BIUH1

Hi there — here's a quick look at what landed this month, from faster exports to a cleaner way to manage your team.

Read the full changelog
Audiences and analytics

Go further than
writing the email

Organise contacts in a way that makes sense, and use clear reporting to learn what your audience actually reads.

SA [email protected] Subscribed
PR [email protected] Subscribed
LE [email protected] Subscribed
M. [email protected] Unsubscribed
JU [email protected] Subscribed
Contact management

Import a list of any size in minutes, then see every contact and their custom attributes in one place.

Learn more
Delivered
12,480
Open rate
48.2%
Click rate
9.6%
S
M
T
W
T
F
S
Broadcast analytics

See exactly how people engage with every campaign — opens, clicks and unsubscribes, broken down by link and by day.

Learn more
Templates

Build emails with React,
not nested tables

Design beautiful templates without wrestling table layouts and inline HTML. Compose them from open-source components and preview them live.

preview.iemails.dev/emails/welcome.tsx
1export default function Welcome({ name = 'Sam' }) {
2 return (
3 <Html>
4 <Preview>Your workspace is ready</Preview>
5 <Tailwind>
6 <Container className="mx-auto p-6">
7 <Heading>Welcome aboard, {name}</Heading>
8 <Text>Your workspace is ready.</Text>
9 <Button href="https://app.acme.com">
10 Open dashboard
11 </Button>
12 </Container>
13 </Tailwind>
14 </Html>
15 );
16}
Welcome to Acme
[email protected] → [email protected]
Acme
Welcome aboard, Sam

Your workspace is ready. Verify a domain and send your first email in a few minutes.

Open dashboard
Acme, Inc. · Unsubscribe
Deliverability

Reach inboxes,
not spam folders

Deliverability isn't a switch you flip once. We watch it every minute, so password resets arrive in seconds — not after a support ticket.

Proactive blocklist alerts

Hear about it first if your domain lands on a DNS blocklist such as Spamhaus — with the delisting request already drafted.

Faster time to inbox

Send from the region closest to your users. North America, South America, Europe and Asia keep latency low.

Your logo with BIMI

Show your brand mark beside every email in supporting inboxes, with guidance on getting a VMC certificate.

Managed dedicated IPs

A dedicated IP that warms itself up and scales with your volume. No waiting period, no spreadsheets.

Smart suppression list

Automatically stop emailing people who bounced or opted out, and stay compliant with CAN-SPAM and GDPR.

DNS and domain monitoring

We watch your records for errors and regressions, and alert you before a change can hurt delivery.

Verified sender identity

Prove you are a legitimate sender with DKIM and SPF, configured through clear, guided steps.

Battle-tested infrastructure

Send over well-reputed IP pools shared only with trustworthy senders, with workloads spread across pools.

Spoofing protection with DMARC

Publish DMARC policies that tell inbox providers exactly what to do with mail pretending to be you.

Northwind
“iemails turned email into the calmest part of our stack. A clean API, sensible defaults and templates that just work — after day one, we stopped thinking about it.”
Megan Robinson
Megan Robinson
CTO, Northwind
Send with Next.js
Dashboard

Total control,
zero friction

Everything you need to manage sending, debug with detailed logs and protect your domain reputation — in one calm dashboard.

Integrations

Plugs into the stack
you already run

Official SDKs for popular frameworks and native connections to the tools your team relies on. Drop iemails into your stack without rewriting it.

$npm i iemailsCopy
All 40+ integrations
Node.jsTypeScript SDKNext.jsReact EmailPythonPython SDKDjangoEmail backendLaravelMail driverRailsAction MailerVercelDeploy hookSupabaseAuth emailsStripeBilling receiptsShopifyOrder emailsHubSpotContact syncDiscordAlertsZapierNo-code flows+27More integrations
Customers

Better than we
promised

Teams of every size use iemails to ship faster, delight their users and spend less time babysitting email infrastructure.

“We moved off our old provider in an afternoon. Dedicated IPs fixed the spam-folder complaints we had been living with for a year.”
DODaniel OkaforCo-founder, Halide
“It feels like the team behind it actually ships product email themselves. Every default is the one I would have picked.”
LVLena VogtStaff Engineer, Fieldset
“Our engineers stopped firefighting email and went back to building features. That alone paid for it.”
AMArjun MehtaHead of Platform, Kestrel
“Webhooks that are signed, retried and replayable. I did not know I needed that until I had it.”
CMChloe MartinBackend Lead, Marlow
“We moved off our old provider in an afternoon. Dedicated IPs fixed the spam-folder complaints we had been living with for a year.”
DODaniel OkaforCo-founder, Halide
“It feels like the team behind it actually ships product email themselves. Every default is the one I would have picked.”
LVLena VogtStaff Engineer, Fieldset
“Our engineers stopped firefighting email and went back to building features. That alone paid for it.”
AMArjun MehtaHead of Platform, Kestrel
“Webhooks that are signed, retried and replayable. I did not know I needed that until I had it.”
CMChloe MartinBackend Lead, Marlow
“We are a small team with a long roadmap. Email is now something we simply do not think about.”
TBTom BeckerOps, Tidewell
“Going to production was the least eventful launch we have had. Zero friction, zero surprises.”
SLSara LindqvistSoftware Engineer, Northwind
“React templates changed how our designers and engineers work together on email. No more table hacks.”
MRMarco RossiDesign Engineer, Halide
“Simple API, honest pricing and the best debugging view of any email tool we have tried.”
ARAisha RahmanCTO, Fieldset
“We are a small team with a long roadmap. Email is now something we simply do not think about.”
TBTom BeckerOps, Tidewell
“Going to production was the least eventful launch we have had. Zero friction, zero surprises.”
SLSara LindqvistSoftware Engineer, Northwind
“React templates changed how our designers and engineers work together on email. No more table hacks.”
MRMarco RossiDesign Engineer, Halide
“Simple API, honest pricing and the best debugging view of any email tool we have tried.”
ARAisha RahmanCTO, Fieldset

Email, rebuilt for developers.
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iemails

Email infrastructure for teams who would rather read a trace than a support ticket.

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1016 EA Amsterdam, NL

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