# About Startup Mail

> Startup Mail is a focused custom-domain email service built and operated by Gustav Hartz. It gives small companies one mailbox system that people, products, and AI agents can use without adopting a full office suite.

## Why this exists

Small companies often need a handful of durable addresses: a private founder inbox, a shared hello@ address, or an operational mailbox that software can also use. Existing choices tend to start with an employee suite, a sending API, or raw infrastructure.

Startup Mail starts with the mailbox. It stores conversations, gives people a focused web inbox, forwards selected addresses, and exposes explicit interfaces for applications and agents. The product is deliberately narrow, and its limits are documented openly.

## Founder and operator

Gustav Hartz builds the product, documentation, infrastructure, and support behind Startup Mail. Contact [hello@startupmail.dev](mailto:hello@startupmail.dev).

## System boundaries

- A Cloudflare Worker serves the application and API, with D1 metadata, R2 mail objects, and queued jobs.
- AWS SES and SNS form the external sending, receiving, and delivery-event boundary.
- Mailbox authorization stays in scope for every customer-data query.
- Sending limits, suppression, retries, and anti-abuse rules protect the shared system.

## Verify the details

- [Security and privacy](https://staging.startupmail.dev/docs/security.md)
- [How Startup Mail works](https://staging.startupmail.dev/docs/how-it-works.md)
- [Acceptable use](https://staging.startupmail.dev/acceptable-use)
- [Public SDK and examples](https://github.com/startupmail/startupmail-sdk)