OPC Mail vs SimpleLogin

OPC Mail is an email alias service for a domain you own. After you point the domain’s MX records to Cloudflare in a one-time DNS change, any prefix at that domain works immediately, without creating aliases in advance. This lets one-person companies use separate addresses for service registrations, newsletters, online shopping, and beta testing or QA while keeping a main inbox organized. The service says it has no tracking or ads, does not sell user data, and does not use AI to read mail. OPC Mail describes itself as fully open source and links to its GitHub source code. It reports average delivery of 2–5 seconds using Cloudflare Edge and a global CDN. The Free plan costs nothing and includes unlimited aliases per domain. An iOS app checks the inbox; web access is also listed.

SimpleLogin creates email aliases that forward messages to a mailbox while keeping a user's real address hidden. Users can reply to messages or send mail from an alias. Aliases can be created with a subdomain or catch-all domain, and users can bring their own domain. With PGP enabled, messages are encrypted with the user's PGP key before forwarding. Accounts support TOTP and/or WebAuthn two-factor authentication. SimpleLogin says its components are open source and can be self-hosted. It lists Chrome, Firefox, and Safari extensions, plus iOS and Android apps, including Android through F-Droid. The Free plan costs nothing and includes 10 aliases, one mailbox, and unlimited bandwidth; users cannot create more aliases after reaching the cap. Premium costs $36/year or $4 billed monthly, and includes unlimited aliases, custom domains, and mailboxes, plus PGP encryption. Free and Premium plans include the corresponding Proton Pass features. SimpleLogin says it joined Proton in early 2022.