The email API for sending, inbound, and privacy

Send transactional emails, process inbound messages, protect user privacy with masked addresses. One API.

API and SMTPEU/EEA primary dataMigration support

Send email from Node.js, Python, Ruby, PHP, or Go in minutes.

Install the official Postscale SDK for your runtime, call the public API with structured results, and verify signed webhooks without maintaining a custom HTTP wrapper.

npm install @postscale/postscale
Read SDK docs
import { Postscale } from "@postscale/postscale";

const postscale = new Postscale(process.env.POSTSCALE_API_KEY);

const { data, error } = await postscale.emails.send({
  from: "hello@yourdomain.com",
  to: ["user@example.com"],
  subject: "Welcome",
  html_body: "<strong>It works.</strong>",
});

if (error) throw new Error(error.message);

console.log(data?.message_id);

Transactional delivery with the controls production teams need.

Send through the API or SMTP, authenticate every domain, and follow each message from acceptance to delivery, bounce, or retry.

  • REST API and SMTP relay in one sending pipeline
  • DKIM, SPF, DMARC, suppressions, and IP warming
  • Signed webhooks for delivery and bounce events
Explore transactional email

Delivery stream / live

healthy

Accepted

24,810

Delivered

99.98%

delivered184 ms

mx.google.com

delivered231 ms

outlook.com

deferredretry

example.net

EU/EEA

Primary service region

Primary service data hosted in-region, with a standard GDPR DPA.

5

Infrastructure products

One operational control plane

2

Sending interfaces

REST API and SMTP relay

24/7

Delivery visibility

Events, stats, and webhooks

One platform. The complete email path.

Postscale keeps outbound delivery, inbound processing, privacy identities, authentication, and operational events in the same control plane.

01

Transactional email

API and SMTP delivery with authentication, suppression handling, warming, and lifecycle events.

02

Inbound processing

Receive, parse, store, and route complete messages and attachments into your application.

03

Privacy and trust

Masked identities, DMARC reporting, abuse controls, and European-first data handling.

04

Built for developers

Predictable resources, scoped API keys, signed webhooks, and practical migration guides.

Choose a plan for your email volume.

Start with sending, inbound processing, and masked addresses on one shared allowance. Upgrade for more volume, domains, analytics, and support.

See full pricing and plan details

Free plan

Freeforever

For side projects and testing

  • 1,000 shared send + receive emails/month
  • 10 masked addresses
  • Basic inbound parsing
  • Basic usage counter
  • Self-serve documentation
  • No credit card required

Starter

For small apps and startups

9/month
  • 10,000 shared send + receive emails/month
  • Extra emails: €1.20/1,000
  • 50 masked addresses
  • 5 domains
  • Analytics dashboard
Choose Plan
Most Popular

Plus

For scaling applications

29/month
  • 50,000 shared send + receive emails/month
  • Extra emails: €1.00/1,000
  • 150 masked addresses
  • 10 domains
  • Analytics dashboard
Choose Plan

Pro

For growing applications

79/month
  • 100,000 shared send + receive emails/month
  • Extra emails: €1.00/1,000
  • 500 active masked addresses
  • 25 domains
  • Priority best-effort support
Choose Plan

Scale

For high-volume senders

329/month
  • 500,000 shared send + receive emails/month
  • Extra emails: €0.80/1,000
  • 5,000 active masked addresses
  • Unlimited domains
  • Dedicated IPs add-on
Choose Plan

Monthly prices shown. Annual billing includes a 17% discount. Tax, if applicable, is shown at checkout.

Move production mail without a blind cutover.

01

Prepare

Verify domains, authentication, suppression data, and sending limits.

02

Run in parallel

Move one stream at a time while both providers remain observable.

03

Scale deliberately

Warm traffic, monitor bounces, and retire the old route when ready.

Open the migration center

Make email infrastructure the dependable part of your stack.

Start building