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Is ProtonMail EU-sovereign?

No. ProtonMail is operated from Switzerland, outside the EU, so staysin.eu classifies it as non-EU.

Non-EU Switzerland Classified 2026-10-21

Curator's note

Swiss company controlled by the nonprofit Proton Foundation; Switzerland is not an EU member.

How staysin.eu classifies ProtonMail

A provider counts as EU only when all three criteria hold:

  1. Country: the operating company is based in the EU. ProtonMail is operated from Switzerland (outside the EU).
  2. Holding: no non-EU parent or holding company.
  3. Own infrastructure: it runs its own stack rather than reselling a non-EU service.

Where a server physically sits is shown on each check but does not change the verdict: legal reach follows who controls the processing, not where the bytes are. Read the methodology.

How often staysin.eu sees ProtonMail

Seen on 232 of 10871 checked domains (latest check per domain, as of 25 October 2026): as hosting on 19, as DNS on 18, as mail (MX) on 229, as mail sending (SPF) on 3, as third-party requests on 18.

Domains are those people chose to check on staysin.eu, not a representative sample of the web.

Recently checked domains using ProtonMail:

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