addy.io

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

addy.io creates email aliases that forward messages to a real inbox, so users can give out an alias instead of their main address. An alias can be disabled to discard new mail without notice or removed so senders receive a bounce. Users can bring a domain they control and configure catch-all controls. Paid features allow replies to forwarded messages or new messages from aliases without exposing the real address. Recipient-specific GPG/OpenPGP public keys can encrypt forwarded mail, with an option to hide and encrypt the subject. The service lists free open-source Android and iOS apps, browser extensions, an API for automating account resources, and instructions for self-hosting. Bitwarden supports creating addy.io aliases from its generator in the desktop app, extensions, and web vault, according to the maker. Two-factor authentication is available. The free plan includes unlimited standard aliases but limits shared-domain aliases, recipients, available alias domains, and bandwidth. Paid plans start at $1/mo billed yearly.

Who it is for

addy.io suits people who want to give out aliases rather than a primary email address. Developers can automate account resources through its API, and self-hosting instructions are available for those who want to run it themselves.

What is good

Aliases can be disabled or deleted with different sender outcomes.
Custom domains include catch-all controls.
Open-source mobile apps and browser extensions are listed.
API can automate aliases, recipients, and domains.

What to know first

Free plan has a 10MB monthly bandwidth limit.
Anonymous replies and sends are paid features.
Free plan allows one recipient.

Verdict

addy.io offers alias forwarding with controls for domains, replies, and encrypted forwarded messages. Check the free-tier recipient and bandwidth limits, and note that anonymous sending requires a paid plan.

Compared on email alias services

Free plan: Yesaddy.io
Paid from: $1/moaddy.io
Alias limit: 50 aliasesaddy.io
Custom domains: Yesaddy.io
Reply from alias: Yesaddy.io
Send from alias: Yesaddy.io
Browser extension: Yesaddy.io
Mobile apps: bothaddy.io

Facts

Purpose: addy.io creates email aliases that forward messages to a real inbox so users can share aliases instead of their main email address.addy.io · 28 Sept 2026
Alias controls: Users can deactivate an alias to silently discard new mail or delete it so senders receive a bounce.addy.io · 28 Sept 2026
Anonymous replies: Users can reply to forwarded emails or initiate messages from aliases without revealing their real email address; this is a paid feature.addy.io · 28 Sept 2026
Encryption: Users can add GPG/OpenPGP public keys per recipient to encrypt forwarded messages and optionally hide and encrypt the subject.addy.io · 28 Sept 2026
Apps and extensions: The maker lists free open-source iOS and Android apps and browser extensions for Firefox, Chrome, Edge, Safari, and Chromium-based browsers such as Brave and Vivaldi.addy.io · 28 Sept 2026
API: The API can automate aliases, recipients, domains, additional usernames, and other account resources.addy.io · 28 Sept 2026
Bitwarden integration: Bitwarden supports creating addy.io aliases from its generator in its desktop application, browser extensions, and web vault, according to the maker's announcement.addy.io · 28 Sept 2026
Email transport security: The maker states it uses opportunistic DANE TLS for emails, MTA-STS on shared domains, TLS reporting, DNSSEC, SPF, DKIM, and DMARC.addy.io · 28 Sept 2026
Data protection: The maker says sensitive database data such as recipient email addresses is encrypted with OpenSSL and AES-256-CBC, with a message authentication code to detect modification.addy.io · 28 Sept 2026
Account security: The site supports two-factor authentication, including authenticator apps and hardware authentication devices such as YubiKey.addy.io · 28 Sept 2026
Security audit: The maker says Securitum performed an independent security audit in September 2023 and identified no significant vulnerabilities.addy.io · 28 Sept 2026
Self-hosting: The maker provides instructions for hosting addy.io yourself.addy.io · 28 Sept 2026
Creator: The FAQ identifies Will Browning, a web developer from the UK, as the person behind addy.io.addy.io · 28 Sept 2026