Is mailbox.org Safe? Security Analysis for Heinlein Support GmbH
https://mailbox.orgCheck if mailbox.org is a scam or legitimate. Free security scan and reviews.
Above Technology avg (72)
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500+
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
mailbox.org is a well-established German secure email provider operated by Heinlein Support GmbH, founded in 1998. The company offers privacy-focused email services, cloud storage, online office tools, and secure video conferencing, targeting private individuals, businesses, and public sector institutions. The website reflects a strong commitment to data protection, leveraging German privacy laws and certifications such as SHiG, SMiG, and BSI IT Security Labels. The business model is subscription-based, with tiered pricing plans and a free 30-day trial, emphasizing ad-free and encrypted communication.
Detected Technologies
8 urgent findings need attention
8 high
Keep mailbox.org under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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Security Headers
2 findings
90/100
GDPR Compliance
4 findings
35/100
NIS2 Compliance
8 findings
17/100
Email Security
1 finding
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The company positions itself as a trusted provider in the secure communication market, leveraging German data protection standards as a competitive advantage. Its offerings cater to diverse customer segments including private users, companies, and public authorities, with features like custom domains and migration services. The presence of certifications and transparency reports enhances credibility. The company operates independently under Heinlein Support GmbH, with no visible subsidiaries or partners disclosed on the site. The business appears medium-sized with a mature market presence.
Security Posture Analysis
Comprehensive Security Assessment
The website and service demonstrate a strong security posture with HTTPS enforcement, clientTransferProhibited domain status, and emphasis on encryption and privacy. Certifications from recognized German security bodies support this stance. However, some improvements are recommended such as enabling DNSSEC, publishing a vulnerability disclosure policy or security.txt, and providing explicit incident response contacts. No critical vulnerabilities or exposed sensitive data were detected in the analysis.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC to enhance domain security and prevent DNS spoofing.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Heinlein Support GmbH
mailbox.org is a secure and ad-free e-mail provider offering online office, cloud storage, and video conferencing services with 100% green energy and German data protection standards.
excellent
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Strong encryption emphasized
- Client transfer prohibited domain status
- German data protection compliance
- No tracking or advertising
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak Strict-Transport-Security configuration
LOWCurrent value: "max-age=15768000; includeSubDomains; preload"
Weak Referrer-Policy configuration
LOWCurrent value: "no-referrer-when-downgrade, strict-origin-when-cross-origin"
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Third-party services without privacy policy
HIGHDetected services: LinkedIn
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
SPF Details
DMARC Details
MTA-STS Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does mailbox.org compare?
See how mailbox.org stacks up against similar websites in the same industry.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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PDF Report & Export
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.
SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
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