# Undelivered.io

> Privacy-first email relay service. Create unlimited aliases, protect your real inbox, and take control of your email identity. One inbox to rule them all.™

## Getting Started

Quick start guide for using Undelivered.io email aliases.

- [How It Works](/#how-it-works): Learn how email aliases protect your privacy and prevent tracking
- [Compatibility](/#compatibility): Undelivered works great with your existing email providers
- [Create Your First Alias](/get-started): Generate your first @relay.undelivered.io email alias

## Features

Core capabilities of the Undelivered.io email relay.

- [Email Forwarding](/features/forwarding): All emails to your aliases are forwarded to your real inbox
- [Alias Management](/features/management): Enable, disable, or delete aliases at any time

## Browser Extension

GhostBox - the companion browser extension for Undelivered.io.

- [GhostBox for Chrome](https://chromewebstore.google.com/detail/ghostbox/ppdmldfehpkfonehjgbmobkanlecjhcn): Install GhostBox from the Chrome Web Store
- [GhostBox for Firefox](https://addons.mozilla.org/en-US/firefox/addon/ghostbox/): Install GhostBox from Firefox Add-ons

## Privacy Policy

We are committed to protecting your privacy and ensuring the security of your personal information.

- [Privacy Policy](https://undelivered.io/privacy-policy): Read our Privacy Policy

## Notes

- Aliases follow the format: domain-word1-word2@relay.undelivered.io
- BIP-39 style wordlists ensure pronounceable, human-readable aliases
- Cross-site tracking and data breach correlation are prevented by unique per-site aliases
- Undelivered is built for privacy - no ads, no analytics, no BS.