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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, 2026โ€ขReviewed 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
๐Ÿ‡บ๐Ÿ‡ธUS

US data laws

๐Ÿ‡ฉ๐Ÿ‡ชDE

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

๐Ÿ‡บ๐Ÿ‡ธ

Microsoft

VS
Switching to
Posteo logo

Posteo

๐Ÿ‡ฉ๐Ÿ‡ช

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

  • โœ“Ad-free: No ads cluttering your inbox.
  • โœ“Green: 100% renewable energy for operations.
  • โœ“Privacy: Anonymous sign-up protects identity.
  • โœ“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.