Run Render25 directly in Cursor: install the new plugin from Marketplace
THE SMTP PLATFORM FOR DEVELOPERS

Fast Transactional Emails
for Teams and Agents

Integrations

Built for your stack.

Drop in our official SDKs and get up and running in minutes. We provide first-class support and comprehensive documentation for your preferred language.

TypeScript
Python
Go
Node.js
Ruby
Rust
PHP
.NET
Next.js
Django
Laravel
Ruby on Rails
Phase 1 / Rendering

Write React.
Output magic.

Stop fighting with 1999-era HTML tables and inline CSS. Write your emails using modern React components with full type safety and Tailwind support. We compile it down to flawless HTML that works perfectly in Outlook, Gmail, and Apple Mail.

Phase 2 / Edge Delivery

Sent from the edge.
Delivered instantly.

Our globally distributed Anycast network routes your outgoing messages through the fastest path possible. We bypass legacy SMTP relays and connect directly to major inbox providers to ensure sub-100ms delivery times worldwide.

Phase 3 / Telemetry

Microsecond
Observability.

Every open, click, bounce, and delivery is logged instantly into our ClickHouse analytics engine. Query millions of logs via our API in milliseconds, or stream them directly to your Datadog or AWS infrastructure.

99.8%

Uptime SLA guarantee

40ms

Global average latency

2B+

Emails delivered monthly

Everything you need.
Built to scale.

Global Edge Network

Emails are routed through our anycast network, drastically reducing latency and improving deliverability worldwide.

Real-time Webhooks

Receive instant notifications for deliveries, opens, clicks, and bounces directly to your endpoints.

Enterprise Security

SOC2 Type II compliant, GDPR ready, and built with military-grade encryption at rest and in transit. Secure SAML SSO and RBAC included for all enterprise teams out of the box.

SOC2 TYPE II
TLS 1.3
GDPR

From developers

Teams that ship with Render25.

Engineers and founders who moved to Render25 for better deliverability, cleaner APIs, and infrastructure they don't have to think about.

Switched from Sendgrid three months ago. Delivery rates went from 91% to 99.4%. I don't think about email infrastructure anymore.

MH
Marcus Holt@marcusholt

The API is exactly what I wanted. Clean, typed, no ceremony. Had transactional email working in our Go service in under 20 minutes.

PA
Priya Anand@priyaanand

We send about 400K emails a month. Render25 handles it without a single complaint. Logs are instant, webhooks fire every time.

TE
Tom Eriksson@tomeriksson

DKIM and SPF setup was three clicks. Deliverability was great from day one. Finally a platform that doesn't make you wrestle with DNS for two days.

AO
Aisha Okafor@aishaokafor

The Python SDK is genuinely well-written. Async-native, typed responses, sensible errors. It's clear someone who actually writes code built this.

DR
Daniel Roux@danielroux

We moved our transactional and marketing sends here. The unified log view alone saved my team hours every week. Pricing is honest too.

SL
Sara Lindqvist@saralindqvist

Sub-100ms delivery to Japanese inboxes. We were stuck at 3-4 seconds on our old provider. The anycast routing makes a real difference.

KW
Kenji Watanabe@kenjiwatanabe

Render25 is the first email API where the docs actually match what the API does. Small thing, but it matters enormously.

NB
Natalie Brun@nataliebrun

Webhook reliability is something most providers get wrong. Zero missed events since migrating. The retry logic with exponential backoff is solid.

CM
Chris Maher@chrismaher

Open and click tracking shows up instantly. Used to wait 10-15 minutes on our previous platform. The real-time logs changed how we debug.

LH
Leila Hosseini@leilahosseini

Switched from Sendgrid three months ago. Delivery rates went from 91% to 99.4%. I don't think about email infrastructure anymore.

MH
Marcus Holt@marcusholt

The API is exactly what I wanted. Clean, typed, no ceremony. Had transactional email working in our Go service in under 20 minutes.

PA
Priya Anand@priyaanand

We send about 400K emails a month. Render25 handles it without a single complaint. Logs are instant, webhooks fire every time.

TE
Tom Eriksson@tomeriksson

DKIM and SPF setup was three clicks. Deliverability was great from day one. Finally a platform that doesn't make you wrestle with DNS for two days.

AO
Aisha Okafor@aishaokafor

The Python SDK is genuinely well-written. Async-native, typed responses, sensible errors. It's clear someone who actually writes code built this.

DR
Daniel Roux@danielroux

We moved our transactional and marketing sends here. The unified log view alone saved my team hours every week. Pricing is honest too.

SL
Sara Lindqvist@saralindqvist

Sub-100ms delivery to Japanese inboxes. We were stuck at 3-4 seconds on our old provider. The anycast routing makes a real difference.

KW
Kenji Watanabe@kenjiwatanabe

Render25 is the first email API where the docs actually match what the API does. Small thing, but it matters enormously.

NB
Natalie Brun@nataliebrun

Webhook reliability is something most providers get wrong. Zero missed events since migrating. The retry logic with exponential backoff is solid.

CM
Chris Maher@chrismaher

Open and click tracking shows up instantly. Used to wait 10-15 minutes on our previous platform. The real-time logs changed how we debug.

LH
Leila Hosseini@leilahosseini

Switched from Sendgrid three months ago. Delivery rates went from 91% to 99.4%. I don't think about email infrastructure anymore.

MH
Marcus Holt@marcusholt

The API is exactly what I wanted. Clean, typed, no ceremony. Had transactional email working in our Go service in under 20 minutes.

PA
Priya Anand@priyaanand

We send about 400K emails a month. Render25 handles it without a single complaint. Logs are instant, webhooks fire every time.

TE
Tom Eriksson@tomeriksson

DKIM and SPF setup was three clicks. Deliverability was great from day one. Finally a platform that doesn't make you wrestle with DNS for two days.

AO
Aisha Okafor@aishaokafor

The Python SDK is genuinely well-written. Async-native, typed responses, sensible errors. It's clear someone who actually writes code built this.

DR
Daniel Roux@danielroux

We moved our transactional and marketing sends here. The unified log view alone saved my team hours every week. Pricing is honest too.

SL
Sara Lindqvist@saralindqvist

Sub-100ms delivery to Japanese inboxes. We were stuck at 3-4 seconds on our old provider. The anycast routing makes a real difference.

KW
Kenji Watanabe@kenjiwatanabe

Render25 is the first email API where the docs actually match what the API does. Small thing, but it matters enormously.

NB
Natalie Brun@nataliebrun

Webhook reliability is something most providers get wrong. Zero missed events since migrating. The retry logic with exponential backoff is solid.

CM
Chris Maher@chrismaher

Open and click tracking shows up instantly. Used to wait 10-15 minutes on our previous platform. The real-time logs changed how we debug.

LH
Leila Hosseini@leilahosseini

Switched from Sendgrid three months ago. Delivery rates went from 91% to 99.4%. I don't think about email infrastructure anymore.

MH
Marcus Holt@marcusholt

The API is exactly what I wanted. Clean, typed, no ceremony. Had transactional email working in our Go service in under 20 minutes.

PA
Priya Anand@priyaanand

We send about 400K emails a month. Render25 handles it without a single complaint. Logs are instant, webhooks fire every time.

TE
Tom Eriksson@tomeriksson

DKIM and SPF setup was three clicks. Deliverability was great from day one. Finally a platform that doesn't make you wrestle with DNS for two days.

AO
Aisha Okafor@aishaokafor

The Python SDK is genuinely well-written. Async-native, typed responses, sensible errors. It's clear someone who actually writes code built this.

DR
Daniel Roux@danielroux

We moved our transactional and marketing sends here. The unified log view alone saved my team hours every week. Pricing is honest too.

SL
Sara Lindqvist@saralindqvist

Sub-100ms delivery to Japanese inboxes. We were stuck at 3-4 seconds on our old provider. The anycast routing makes a real difference.

KW
Kenji Watanabe@kenjiwatanabe

Render25 is the first email API where the docs actually match what the API does. Small thing, but it matters enormously.

NB
Natalie Brun@nataliebrun

Webhook reliability is something most providers get wrong. Zero missed events since migrating. The retry logic with exponential backoff is solid.

CM
Chris Maher@chrismaher

Open and click tracking shows up instantly. Used to wait 10-15 minutes on our previous platform. The real-time logs changed how we debug.

LH
Leila Hosseini@leilahosseini

Ready to send?

Send 3,000 emails per month for free.