# privymail.eu and mailbox.org

> This page sets mailbox.org beside privymail.eu: what mailbox.org states about itself, the features of privymail.eu, sources and date.

> **Information as of 5 October 2026.** You can use mailbox.org today; you cannot yet use privymail.eu. Later changes by mailbox.org are not reflected.

This page sets mailbox.org beside privymail.eu. It is written by a competitor and is not a rating. What is said here about mailbox.org comes from the website, help pages and imprint of mailbox.org; we have not tested the service technically. The references are listed under "Sources". The [comparison](https://privymail.eu/en/compare.md) shows all services side by side.

## In short

The two approaches agree on two points: common mail apps work over IMAP and SMTP, and both services let you use your own domain, depending on the plan. By its own account, mailbox.org combines the mailbox with video conferencing and, depending on the plan, with Drive storage and Office, and it refers to a BSI C5 certificate and ISO 27001 certification. privymail.eu confines itself to mail, calendar and contacts and relies on two levels of protection per folder and on Domain Autopilot.

## What mailbox.org states about itself

According to mailbox.org:

- **Common mail apps.** The pricing page lists IMAP and POP3 in the Light, Standard and Premium plans; the help pages name synchronisation of emails via IMAP/SMTP in programs such as Thunderbird, Outlook or mobile email apps. As compatible email programs, the help pages list Thunderbird, Outlook and Apple Mail; according to the same page, mailbox.org does not provide support for programs that have not been officially tested or approved.
- **Calendar and contacts over CalDAV and CardDAV.** The help pages describe synchronising calendars over CalDAV and contacts over CardDAV. According to the pricing page, email, calendar and contacts are compatible with the standard iOS and Android apps.
- **More than mail.** The pricing table lists video conferencing in the Light, Standard and Premium plans, and Drive storage and editing documents online in the Standard and Premium plans.
- **Certificate, certification and experience.** mailbox.org celebrated its tenth anniversary in 2024, by its own account, and refers to a BSI C5 certificate and ISO 27001 certification. Behind the service, by its own account, is the Heinlein Group with over 30 years of experience.
- **Run in Berlin.** According to mailbox.org, its servers in the Berlin data centres use electricity from renewable sources.
- **A PGP-encrypted inbox as an option.** When it is switched on, according to mailbox.org, only people with the private PGP key and the corresponding password can access new messages in the inbox. According to mailbox.org, existing messages remain unaffected.

## What privymail.eu does differently

privymail.eu sets these priorities:

- **Two levels of protection per folder.** In the default Compatible mode, every account has its own key pair, with which mail is stored encrypted; the server processes plain text, however, while you are logged in. Folders in Sealed mode are encrypted with OpenPGP: decryption happens on your device, and we cannot read the content. More under [Security](https://privymail.eu/en/security.md).
- **Domain Autopilot.** Custom domains are available from the Pro plan. The Autopilot generates the necessary DNS records and keeps checking them. More under [Your own domain](https://privymail.eu/en/domains.md).
- **Mail, calendar and contacts, nothing else.** Cloud storage, Office and video conferencing are not part of it. If you want them from the same provider, mailbox.org, by its own account, offers video conferencing and, depending on the plan, Drive storage and Office.
- **A free plan.** The Free plan comes with 1 GB of storage, without ads and without tracking. All plans are listed under [Pricing](https://privymail.eu/en/pricing.md).

## The features side by side

| Feature | mailbox.org (by its own account) | privymail.eu (planned) |
|---|---|---|
| Where the provider is based | Germany (Heinlein Hosting GmbH, Berlin) | Germany (patchletter UG (haftungsbeschränkt), Gelsenkirchen; operator of this website) |
| Access with common mail apps (IMAP, SMTP) | Native. The pricing page lists IMAP and POP3 in the Light, Standard and Premium plans; the help pages name synchronisation of emails via IMAP/SMTP. | Native (IMAP, SMTP) in the default Compatible mode, in all paid plans |
| Your own domain | Yes. Standard and Premium plans for private customers (Light only within family accounts) and Business accounts. | From the Pro plan |
| Stored mail the provider cannot read (by its own account) | Option for new messages in the inbox ("PGP-encrypted inbox"). According to mailbox.org, only people with the private PGP key and the corresponding password can then access them; according to mailbox.org, existing messages remain unaffected. | Option per folder ("Sealed", OpenPGP). In the default ("Compatible"), mail is stored encrypted, but the server processes plain text while you are logged in. |
| Calendar and contacts | Synchronisation over CalDAV and CardDAV, according to the help pages | Over CalDAV and CardDAV, in all paid plans |
| Apps | According to the pricing page, email, calendar and contacts are compatible with the standard iOS and Android apps. As compatible email programs, the help pages list Thunderbird, Outlook and Apple Mail; according to the help pages, mailbox.org does not provide support for programs that have not been officially tested or approved. | Webmail. In all paid plans, also any mail app that speaks IMAP and SMTP. |
| Free plan | The pricing page names the Light, Standard and Premium plans and a free 30-day trial. To the question "Can I use mailbox free of charge?", mailbox.org answers there that you can try a plan for 30 days at no cost. | Free plan with 1 GB of storage, without ads and without tracking |

The middle column reproduces what mailbox.org writes about itself; "Native" is our word for a provider naming IMAP or POP3 for mail apps. How mail apps work with privymail.eu is described under [Mail apps and open standards](https://privymail.eu/en/standards.md).

## Who each one suits

**mailbox.org** suits you if you need a mailbox today: you can use mailbox.org, and you cannot yet use privymail.eu. It also suits you if the provider's certificate and certification matter to you, or if you want video conferencing and, depending on the plan, Drive storage and Office from the same provider.

**privymail.eu** suits you if mail, calendar and contacts are enough for you, if you want to choose between Compatible and Sealed for each folder, and if you want the DNS records of your domain checked continuously. The [roadmap](https://privymail.eu/en/roadmap.md) shows how far the service is.

## Sources

What is said about mailbox.org is based on the following pages by mailbox.org. The addresses are given as text because this website does not link to other sites. Retrieved on 5 October 2026.

```
https://mailbox.org/en/legal-information/
https://mailbox.org/en/prices/
https://mailbox.org/en/about-us/
https://kb.mailbox.org/en/private/faq/compatible-web-browsers/
https://kb.mailbox.org/en/private/custom-domains/using-emails-with-a-custom-domain/
https://kb.mailbox.org/en/business/custom-domains/using-emails-with-a-custom-domain/
https://kb.mailbox.org/en/private/encryption/your-encrypted-mailbox/
```

## Reporting errors

If anything on this page is wrong or out of date, please write to us. How to reach us is on the [Contact](https://privymail.eu/en/contact.md) page.

## Trademarks

The names mentioned are trademarks of their respective owners. There is no connection between those companies and privymail.eu.

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- privymail.eu: patchletter UG (haftungsbeschränkt) · Germany
- This page as HTML: https://privymail.eu/en/compare-mailbox-org/
- Deutsche Fassung: https://privymail.eu/compare-mailbox-org.md