Domain Due Diligence
Report for Posteo.de
Why we think so
Posteo.de is an established, privacy-focused email provider based in Germany. It has a strong reputation with about 5.3 million monthly visits, mainly from German-speaking countries. The service emphasizes sustainability, encryption, and ad-free email. Domain security standards are good, and there are no reports of scams, fraud, or legal issues tied to this domain.
Risk Insights
Strong User Base and Traffic
Verified Secure Domain
Reputable, Privacy-Focused Email Service
Contradictory Signals
While the absence of a strict DMARC policy theoretically allows spoofing, no confirmed scams or user losses have been reported.
Signal A: No scam or fraud reports
Signal B: Lack of DMARC policy may increase spoofing risk
Category Scores
Red Flags & Warnings
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Posteo does not implement a strict DMARC policy, which can theoretically allow email spoofing though no incidents have been reported.
🔎 Detailed Checks & Analysis
Domain Traffic and Popularity
Domain Traffic and Popularity
"Traffic data from SimilarTech and SimilarWeb shows sustained user engagement typical for a trusted email provider."
Reason: High monthly visits (~5.3 million) primarily from Germany and surrounding countries indicate legitimate and active use.
SSL and DNS Security
SSL and DNS Security
"No signs of domain expiry or SSL invalidation detected; security measures are in place and current."
Reason: Valid SSL certificate from GeoTrust and properly configured DNS with multiple nameservers ensure technical soundness.
Blacklist and Safe Browsing Status
Blacklist and Safe Browsing Status
"No matched threats or blacklisting suggest good standing in security databases."
Reason: Domain is neither flagged on crypto scam lists nor identified by Google Safe Browsing as risky.
Legal and Trademark Validation
Legal and Trademark Validation
"No legal disputes or inactive trademark status found; ownership by recognized individual based in Germany."
Reason: Registered trademark in the US with live status supports legitimate brand and business identity.
Customer and Public Reputation
Customer and Public Reputation
"Some technical criticisms exist but no credible scam or fraud reports."
Reason: Independent reviews highlight strong privacy, security, and ethical business practices with no fraud allegations.
Your Next Steps
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1Use Posteo.de with confidence for privacy-focused email needs.
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2Verify the URL to avoid phishing attempts exploiting the lack of DMARC protection.
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3Report any suspicious emails purporting to be from Posteo to their official support.
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4Review privacy policies to understand account management and payment terms.
Evidence & Citations
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Posteo Review — 2025 Test Results and Analysis
Detailed review highlighting Posteo's privacy focus and positive reputation, confirming no scam reports.
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Posteo Domain Reputation on IPQualityScore
Confirms the domain as relatively safe with low fraud risk.
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WHOIS and DNS Info for posteo.de
Provides domain registration and SSL certification details.
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Trademark Data for POSTEO
Trademark ownership and legal status confirming legit business operations.
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