Copernica BV · Technology · Netherlands
Medium risk. 3 critical or high findings in Security headers and GDPR outside view.
MailerQ is a specialized high-performance Mail Transfer Agent (MTA) developed by Copernica BV, a technology company based in the Netherlands. The product targets organizations requiring fast, reliable, and scalable email delivery solutions, including Email Service Providers, e-commerce platforms, banks, and government institutions. The website presents detailed product features, customer testimonials, and industry memberships, positioning MailerQ as a trusted and professional solution in the email delivery market. The business model focuses on software licensing and support services for high-volume email senders. Technically, the website employs modern JavaScript libraries such as jQuery and D3.js, alongside a proprietary PxFramework. The hosting infrastructure appears stable with Apache servers and DNS managed by Proxi.nl. However, the absence of a valid SSL certificate and HTTPS support is a critical shortfall, impacting security and user trust. The site includes Google Analytics and Leadinfo tracking scripts, but lacks a cookie consent mechanism, which may raise privacy compliance concerns. From a security perspective, the site implements several HTTP security headers but fails to provide a valid SSL/TLS configuration, leaving communications unencrypted. No explicit security policies, incident response contacts, or vulnerability disclosure mechanisms are publicly available. These gaps represent significant risks, especially given the nature of the business handling email delivery and potentially sensitive customer data. Overall, while the business and website demonstrate professionalism and market relevance, urgent improvements in security posture and privacy compliance are recommended to mitigate risks and enhance trustworthiness.
Scanned
NIS2 Art. 21(2)
This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.
GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.
3 findings rated critical or high. Fix these first.
Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.
Controls resources the browser is allowed to load
What to do: Implement a Content-Security-Policy appropriate for your application
These are the privacy signals visitors and data protection authorities look for under GDPR.
GDPR requires clear information about cookie usage
What to do: Add a dedicated cookie policy explaining cookie usage and purposes
GDPR requires explicit consent for non-essential cookies
What to do: Implement a cookie consent banner that appears on first visit
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Each check with its score, findings and the evidence it collected.
The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.
Counted in this score
Not counted
Findings that cap the score at 49
Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.
Partial scans
When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.
Risk levels
Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.
Leaked records that mention mailerq.com, from OffSeq Breach.
2 subdomains affected
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Breach keeps ingesting new leaks, so these numbers can grow between scans.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.
Retrieved 2026-10-25
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