Is Microsoft 365 EU-sovereign?

How staysin.eu classifies Microsoft 365

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

1. Country: the operating company is based in the EU. Microsoft 365 is operated from the United States (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 Microsoft 365

Seen on 2683 of 10871 checked domains (latest check per domain, as of 25 October 2026): as mail (MX) on 2047, as mail sending (SPF) on 655.

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

Recently checked domains using Microsoft 365:

• ama.pt
• ikr-le.de
• squild.de
• der-retter.at
• www.lib.chalmers.se
• intranet.chalmers.se
• driftstorning.chalmers.se
• chalmers.se
• santander.com
• rmdit.ch

Check which providers a domain uses · All classified providers