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Outlook vs Posteo: Is Your Metadata Safer with Posteo?

Discover how Germany's Posteo protects your email metadata compared to the US's Outlook. Secure your communications today with enhanced privacy.

Last updated: February 19, 2026Reviewed by Built in EU Team

Should You Switch to Posteo?

What You Gain

Gain privacy, renewable energy use, and ad-free experience

Privacy advantage
Trade-offs

Lose integrated calendar, task management, and OneDrive features

Outlook has more features
Bottom Line

Switch for privacy and sustainability; stay for features and integration

At a Glance

Data Location
🇺🇸US

US data laws

🇩🇪DE

GDPR protected

Pricing

Outlook

Contact

Posteo

subscription

Migration
Medium difficulty~1-2 hours

Privacy & Compliance Comparison

Critical data sovereignty factors at a glance

CriteriaOutlookPosteo
Server Location
US (Microsoft Azure), EU (optional)EU (Germany)
GDPR Compliance
Partial (SCCs)Full
Open Source
E2E Encryption
Enterprise onlyOptional
Data Portability
Full exportFull export

CLOUD Act Notice

Outlook is a US company and must comply with CLOUD Act data requests, even for data stored in EU data centers. Posteo is not subject to US jurisdiction.

Switching from
Outlook logo

Outlook

🇺🇸

Microsoft

VS
Switching to
Posteo logo

Posteo

🇩🇪

US Data Storage

Data subject to US CLOUD Act and may be accessed by US authorities

EU Data Protection

Data protected under GDPR with EU-only data residency

Certifications & Compliance

No certifications listed

EU-hosted
EU-Based
GDPR Compliant
Carbon Neutral

Reasons to Switch

  • Ad-free: No ads cluttering your inbox.
  • Green: 100% renewable energy for operations.
  • Privacy: Anonymous sign-up protects identity.
  • GDPR: Full compliance ensures data protection.

Things to Consider

  • !Migration: Manual transfer of emails required.
  • !Features: Lacks integrated calendar and tasks.
  • !Learning: New interface may require adjustment.
Migration difficulty:
Medium
~1-2 hours

Migration Overview

Full guide
Difficulty
Medium
Time Estimate
~1-2 hours

Depends on data size and complexity

Quick Steps

1

Create Posteo account and configure settings

2

Export and prepare data from Outlook

3

Import data, test integrations, and migrate users

Note: Unknown

Other alternatives to Outlook

Ready to make the switch?

Start using Posteo today and take control of your data privacy.