mailbox.org – European email provider
A privacy-first email and groupware service from Berlin, run by long-time Linux specialists Heinlein Support. Encrypted mailboxes, calendars, contacts, and an online office - all hosted in certified German data centres and powered by green electricity, with no ads and no tracking.
Quick facts
A full office suite – encrypted mail, calendar, contacts and document editing – comes bundled together, and everything runs on green electricity in certified German data centres.
There's no free tier, just a 30-day trial, and the webmail interface feels more functional than flashy next to Gmail's.
Why does it score 98?
Incorporated in Berlin, Germany – a full EU member state.
Independently owned by Heinlein Support GmbH, a German hosting specialist with no outside investors.
Runs on its own certified German data centres powered by green electricity, rather than a third-party cloud.
GDPR-compliant and built on open standards like PGP and CalDAV, though the platform itself isn't open source.
See how they compare
mailbox.org
Gmail 
Outlook 
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