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Logo: mailbox (formerly mailbox.org)

mailbox (formerly mailbox.org)

German paid digital workplace from Heinlein Hosting GmbH: secure email with PGP/S/MIME, Drive, browser Office, Meet, and business Admin on dual Berlin data centres.

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2014 nach Snowden-Enthüllungen startete mailbox.org als sichere E-Mail unabhängig von US-Tech-Giganten. Heinlein Hosting GmbH Berlin wuchs zur vollständigen Produktivitätsplattform, jetzt mailbox. Deutsche Provider speichern in zertifizierten Berliner Rechenzentren mit 100 % erneuerbarer Energie. Keine Werbung, Ende-zu-Ende-Verschlüsselung. BSI C5 Cloud-Zertifizierung 2026. Jährliche Transparenzberichte, oft abgelehnte Datenanfragen. Verträge für Tausende Lehrkräfte in Berlin und Thüringen – europäische Datenkontrolle.

Key capabilities

Emails benefit from PGP and S/MIME support, with server-side encryption simplifying secure communication. Spam and virus protection filters incoming messages effectively. Plans include aliases—up to 3 on Light, 25+50 on Standard, and 25+250 on Premium—plus custom domains. Unlimited filters and rules help manage inboxes. Tor compatibility adds anonymity options.

Drive offers expandable storage in redundant Berlin data centers. Standard provides 5 GB, Premium 50 GB, with further options. The integrated office suite handles word processing, spreadsheets, and collaboration. Shared calendars and address books support teams. Files sync across devices securely.

Meet delivers GDPR-compliant video calls without external providers. For businesses, Admin panels manage users, quotas, and access centrally. XMPP chat integrates for messaging. All powered by green energy, with full GDPR adherence.

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Häufig gestellte Fragen

No permanent free tier exists. Plans start at €1/month, with a 30-day free trial to test all features.

Yes. It adheres fully to GDPR, stores data exclusively in German centers, and holds BSI C5, ISO 27001 certifications. Transparency reports confirm privacy practices.

  • Proton Mail: Strong encryption, free tier, but Swiss and limited productivity tools.
  • Tuta (formerly Tutanota): German, automatic E2EE email, smaller storage.
  • Posteo: Simple German email, eco-focused, no full suite.