# mailbox.org

> Source: https://fuckyc.org/services/mailbox-org/
> Website: https://mailbox.org/
> Categories: Privacy email
> KYC: optional — German paid email service; signup requires only an existing email and a chosen username. Cash by mail accepted as a top-up method.
> Status: active
> Jurisdiction: Germany (operator-disclosed)
> Fiat on-ramp: no
> Payment methods: cash-by-mail, bank-transfer, card, paypal
> Founded: 2014
> Open source: no
> Custodial: yes
> Last verified: 2026-01-01

## Verdict

mailbox.org is the polished German paid-email alternative to Posteo, with the same cash-by-mail posture. Full IMAP/SMTP, PGP-aware webmail, encrypt-on-arrival options. Best fit for users who want Posteo's payment model with a more enterprise-feature feel.

## Strengths

- Cash-by-mail funding accepted, similar to Posteo's posture.
- PGP-aware web client and PGP-on-arrival encryption-at-rest options.
- Full IMAP/SMTP plus a usable webmail.

## Caveats

- German jurisdiction; same legal-process exposure as Tuta and Posteo.
- Paid-only — no free tier.
- PGP encryption is opt-in; not in-protocol like Tuta.
- Facts need re-verification by operator (last seeded 2026-01).

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## What mailbox.org is

A paid German email provider with PGP-aware tooling and cash-by-mail funding.

## Threat-model fit

Posteo alternative for users who want richer feature set without losing the cash-payment de-binding.

## Sources

- [mailbox.org homepage](https://mailbox.org/en/) — accessed 2026-01-01
- [mailbox.org knowledge base](https://kb.mailbox.org/en/) — accessed 2026-01-01