AnonAddy

AnonAddy is an open-source anonymous email forwarding service that lets users create disposable aliases to protect their real email address. It provides web, browser-extension and mobile interfaces, plus an API and documented self-hosting options.

Key Features

• Create unlimited on-the-fly and pre-generated aliases across shared and custom domains.
• Forwarding and alias management (deactivate, delete, multiple recipients per alias).
• Reply/send anonymously from aliases so the recipient never sees your real address.
• GPG/OpenPGP support to encrypt forwarded messages (including subject and attachments) and signed forwards.
• Custom domain support with DNS verification and optional catch-all handling.
• Official browser extension and native mobile apps; API for programmatic management.
• Official Docker image and detailed self-hosting documentation for production deployment (Postfix integration, DB/Redis configuration).

Use Cases

• Prevent tracking and spam by using a unique alias per site or service.
• Compartmentalize identities (work, personal, projects) with multiple usernames and domains.
• Protect inbox contents from provider-side snooping by encrypting forwarded mail with your public key.
• Operate a privacy-preserving email alias service for yourself or an organization using the provided Docker/Postfix setup.

Limitations and Considerations

• Self-hosting requires configuring an MTA (Postfix), a MySQL/MariaDB-compatible database and Redis; installation and DNS/MX setup are non-trivial.
• Hosted pricing tiers impose bandwidth and feature limits (e.g., the free tier includes a small monthly bandwidth allowance and limits on shared domain aliases).
• A domain added as a custom domain cannot simultaneously be used as a recipient on the same service instance (to avoid delivery loops).

AnonAddy combines alias-based forwarding, optional encrypted delivery, and full self-hosting support to give users control over email privacy and deliverability. It is published as open-source software and maintained with official Docker images and deployment docs for production use.