E-mail · Calendar & contacts · Office documents
mailbox.org
Business-grade German mail with calendar and office.
proprietary hosted in Europe mailbox.org (Heinlein Hosting) · DEBerlin-based provider with mail, calendar, contacts, video calls and an office suite for teams.
Website ↗ Plan “E-mail” with itPlan “Calendar & contacts” with itPlan “Office documents” with it
How you can run it
| Way | Where the data lives | Price basis | Verdict |
|---|---|---|---|
| Hosted in Europe | servers in Europe, run by a European company | ≈ €3/mo per seat | yellow — European company, European servers, but someone else runs it. |
Facts
| Company / project | mailbox.org (Heinlein Hosting) (DE) |
|---|---|
| Licence | proprietary |
| Commonly replaces | Google Workspace, Microsoft 365 |
| Provenance | curated, verified 2026-09-04 |
Machine-readable: /api/tools/mailbox-org.json. Something wrong? Tell us.