Is postmarkapp.com Safe? Security Analysis for Postmark
https://postmarkapp.comCheck if postmarkapp.com is a scam or legitimate. Free security scan and reviews.
Unlock the complete security report for postmarkapp.com
Get full access to AI recommendations, compliance evidence, vulnerability remediation steps, and downloadable PDF reports. Upgrade once for lifetime access to this scan.
Full Report Access
All modules, AI insights, PDF download
Marketing Intelligence
Contact emails, phone numbers & warm leads
How it works
- Enter your email to receive the unlocked report.
- Complete the secure EveryPay checkout (cards & local methods supported).
- You’ll receive an email with your unique unlock code and the PDF export.
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
AI Summary
Postmark is a well-established email delivery service founded in 2009 and currently owned by ActiveCampaign, LLC. The company specializes in fast, reliable transactional and marketing email delivery targeted primarily at… Unlock the full Guard report to read the complete analysis.
Detected Technologies
Keep postmarkapp.com 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
Cancel anytime. Alerts sent to the contacts you choose. Unlock the full report to view historical timelines and alerts.
Security Headers
5 findings
50/100
GDPR Compliance
3 findings
68/100
NIS2 Compliance
9 findings
2/100
Email Security
2 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.
Business Intelligence
Market & Strategic Analysis
Postmark operates in the technology sector as a SaaS provider of email delivery services. Its business model revolves around subscription-based access to email APIs and SMTP services, targeting developers and businesses requiring reliable email infrastructure. The company benefits from its parent company ActiveCampaign's resources and brand recognition. Market positioning is strong with a focus on deliverability, ease of integration, and customer support. The presence of migration guides and comparisons to competitors like SendGrid and Mailgun indicates a competitive strategy to attract customers switching from other providers. The company maintains a positive customer satisfaction rating and leverages multiple marketing and analytics platforms to optimize growth and user engagement.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
Postmark demonstrates a mature security posture with HTTPS enforced and domain registration protections such as clientDeleteProhibited and clientTransferProhibited status flags. The absence of DNSSEC is a minor gap. The website does not expose sensitive data or vulnerable libraries in the HTML content. However, no explicit incident response or vulnerability disclosure information is publicly available, which could be improved. The use of multiple third-party analytics and marketing scripts increases the attack surface but is common for SaaS businesses. Overall, the security posture is strong but could benefit from enhanced transparency and additional DNS security measures.
Strategic Recommendations
Priority Actions for Security Improvement
Upgrade to the full Guard report to access tailored remediation steps.
✨Observations
AI-powered comprehensive website and business analysis.
A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.
AI-Enhanced Website Analysis
Business Insights
Postmark
Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited
- No DNSSEC enabled (recommend enabling)
- No exposed sensitive data in HTML
- Use of secure API tokens in examples
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
🛡️Security Headers
HTTP security headers analysis and recommendations.
Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections Unlock the full report to read the complete fix.
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load Unlock the full report to read the complete fix.
Weak Referrer-Policy configuration
LOWCurrent value: "no-referrer-when-downgrade" Unlock the full report to read the complete fix.
Missing Permissions-Policy header
MEDIUMControls browser features and APIs Unlock the full report to read the complete fix.
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
Preview of GDPR checkpoints is visible. Unlock to reveal full evidence, policy excerpts, and DPIA guidance.
GDPR Compliance
Privacy and data protection assessment
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies Unlock the full report to read the complete fix.
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR Unlock the full report to read the complete fix.
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements Unlock the full report to read the complete fix.
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.
No security contact information
HIGHNIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.
Critical sector without clear security compliance
HIGHDetected sectors: transport, banking, digital Unlock the full report to read the complete fix.
📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.
Email Security
SPF, DKIM, and DMARC validation
Complex SPF record
LOWToo many include statements can cause lookup limits Unlock the full report to read the complete fix.
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery Unlock the full report to read the complete fix.
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1 Unlock the full report to read the complete fix.
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy Unlock the full report to read the complete fix.
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs Unlock the full report to read the complete fix.
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints Unlock the full report to read the complete fix.
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain Unlock the full report to read the complete fix.
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found Unlock the full report to read the complete fix.
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports Unlock the full report to read the complete fix.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
How did we do?
Your feedback directly shapes our roadmap. Rate the quality of this report, leave an optional comment, and let us know if you want our security specialists to follow up.
What others say about postmarkapp.com
Share your experience to help others make informed decisions. We verify every review by email and publish it once our moderation team approves it.
Community rating
—out of 5
0 reviews published