addy.io (renamed from AnonAddy in 2024) was created in 2019 by developer Will Browning and offers open-source email aliasing under AGPL-3.0, self-hostable via Docker (github.com/anonaddy/anonaddy) or usable as a hosted service. Neither the Terms of Use nor the Privacy Policy on addy.io names an operating legal entity, company number, or registered address; the Terms state only that they "shall be governed by and construed in accordance with the law of England and Wales". Public sources disagree on who operates the service: a public comparison repository lists the jurisdiction as "Netherlands", while other web results describe the operator as "Addy Pty Ltd" in Geelong, Australia; neither claim is corroborated by any addy.io primary source, so this listing records the legal entity and country_iso as not established. The Privacy Policy states servers are located in the Netherlands (UpCloud); named third parties are Stripe and NOWPayments for payments, Amazon SES for newsletter delivery, and Cloudflare Turnstile for captcha. Free, Lite ($1/month billed yearly) and Pro ($3/month billed annually, or $4/month billed monthly) tiers scale from 10 to unlimited aliases; Lite and Pro add custom domains, catch-all (enabled by default on custom domains), PGP-encrypted forwarding (bring-your-own GPG/OpenPGP key), and reply-from-alias, the last of which is deliberately withheld from the Free plan to curb spam and abuse. addy.io passed an independent security audit by Securitum in September 2023 with no significant vulnerabilities found, though this is a one-off audit rather than a recurring certification.