# Euromailing

> European email platform (EU-hosted, GDPR-native): transactional email API,
> campaign sending, contact/list management, inbound mail routing to
> applications, and a Rails integration gem. Docs below are written for
> both humans and AI agents; all pages are plain markdown.

Machine-readable knowledge bundle (Open Knowledge Format v0.1, markdown +
YAML frontmatter): https://euromailing.com/ai/index.md

## Transactional email (start here)

- [Transactional email API](https://euromailing.com/ai/api/transactional-emails.md): send password resets, receipts and alerts via POST /api/v1/transactional_emails — authentication, domain-bound API keys, full request/response contract, every error code
- [Rails integration (euromailing-rails gem)](https://euromailing.com/ai/guides/rails-gem.md): ActionMailer delivery method, user sync, list management from a Rails app
- [Source of the gem](https://github.com/rogerheykoop/euromailing-rails): MIT, no runtime dependencies

## API reference

- [API overview & authentication](https://euromailing.com/ai/api/index.md): base URL, Bearer keys, scopes, rate limits, error envelope
- [Contacts API](https://euromailing.com/ai/api/contacts.md): CRUD, idempotent upsert by email, delete by email
- [Lists API](https://euromailing.com/ai/api/lists.md): CRUD plus subscribe/unsubscribe by email

## Guides

- [Inbound mail to your app (ActionMailbox)](https://euromailing.com/ai/guides/inbound-actionmailbox.md): route addresses or wildcard patterns (*.inbound@…) to a Rails app's ActionMailbox relay ingress

## Optional

- [Pricing](https://euromailing.com/pricing): plans and monthly email volumes
- [API landing page](https://euromailing.com/api): human-oriented overview