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Is Posteo EU-sovereign?

Yes. Posteo is operated from Germany, has no non-EU parent company and runs its own infrastructure, so staysin.eu classifies it as EU-sovereign.

EU Germany Classified 2026-10-21

How staysin.eu classifies Posteo

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

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

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 Posteo

Seen on 3 of 10871 checked domains (latest check per domain, as of 25 October 2026): as DNS on 3, as mail (MX) on 3, as third-party requests on 2.

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

Recently checked domains using Posteo:

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