Learn how to send transactional emails with the Postkit API. EU-hosted, GDPR-native.

Postkit Documentation

Everything you need to integrate Postkit into your application and start sending transactional emails from the European Union.

Get your API key and send your first email in under 5 minutes. No complex setup required.

Step-by-step guides for domain setup, templates, webhooks, inbound email, and more.

Complete REST API reference with schemas, parameters, authentication, and code examples.

Understand email delivery, authentication standards, rate limits, and EU data residency.

Quick Links

Jump straight to sending your first email via the REST API.

Configure DKIM, SPF, and DMARC for your sending domain.

Set up real-time delivery event notifications.

Learn how Postkit keeps all data within the European Union.