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SovEU · Atlas · European alternatives · email
European alternatives to Microsoft Outlook
European companies mapped as alternatives to Microsoft Outlook. Each carries an evidence-led sovereignty profile — jurisdiction, hosting, US exposure, DPA and more — reviewed by SovEU. Profiles are descriptive, not a compliance verdict.
2 alternatives
68DE
Tuta (Tutanota)
End-to-end encrypted email and calendar service operated by Tutao GmbH in Germany; the clients are open source.
European companyOpen source
MediumView →
52CH
Proton Mail
End-to-end encrypted email and productivity suite operated by Proton AG, based in Switzerland.
European company
MediumView →
Compare side by side
The same evidence-led signals across each alternative. A blank cell (“—”) means the signal isn't recorded — never a negative claim — and the score is a transparent signal score, not a compliance verdict.
| Signal | Tuta (Tutanota)DE | Proton MailCH |
|---|---|---|
| Sovereignty score | 68/ 100Moderate sovereignty signals | 62/ 100Moderate sovereignty signals |
| HQ jurisdiction | Germany | Switzerland |
| Primary hosting region | Germany | Switzerland |
| EU data residency option | — | — |
| US cloud dependency | — | — |
| Data Processing Agreement | — | — |
| Subprocessor list published | — | — |
| Self-hosting option | No | No |
| Open source | Yes | Partial |