Skip to main content

Security report for mailtrap.live

Railsware Products Studio LLC · Technology · United States

Medium risk. 4 critical or high findings in Security headers and GDPR outside view.

Security score

67/100

Risk levelMedium

0–100, higher is better. How it is calculated

Mailtrap.io, owned by Railsware Products Studio LLC, is a mature technology company specializing in email testing and delivery services. It serves a large global audience of developers, QA engineers, and managers with key offerings including Fake SMTP, API, SMTP Relay, and Email API. The company holds registered trademarks in major jurisdictions and maintains a strong market presence with over 900,000 users. Technically, the website is hosted behind Cloudflare, uses modern TLS protocols, and integrates popular analytics and customer support tools. Security posture is good with HTTPS enforced and SPF configured, though improvements such as DMARC, HSTS, and DNSSEC are recommended. Privacy compliance is supported by a comprehensive privacy policy and terms of service, but cookie consent mechanisms are not evident. Overall, the site is professional, trustworthy, and well-structured, with clear contact and business information.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 100 · High
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

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.

Priority findings

4 findings rated critical or high. Fix these first.

  1. Security headers

    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.

    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

Need hands-on remediation? Email guard@offseq.com

Keep watching mailtrap.live

This scan found 23 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

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

SSL/TLS
82
Security headers
30
Email security
70
DNS health
75
Network security
100
GDPR outside view
43
Average
67

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

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.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

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

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Mailtrap operates a SaaS business model focused on providing email infrastructure tools primarily for software development and QA teams. Its competitive advantage lies in its specialized email testing and delivery platform trusted by a large user base. The company benefits from a strong parent organization, Railsware, and partnerships with related technology products. Revenue streams likely include subscription plans and API usage fees. The company targets developers and technical teams globally, emphasizing reliability and ease of use. Growth indicators include a mature domain, trademark registrations, and extensive user trust signals. The partnership ecosystem includes related SaaS products enhancing its market offering.

Security posture

The website demonstrates a solid security foundation with HTTPS enabled using TLS 1.3 and 1.2, no known SSL vulnerabilities, and a valid SPF record to protect email sending. However, the absence of DMARC and HSTS headers reduces email and transport security effectiveness. DNSSEC is not enabled, which could improve domain integrity. No explicit security policy or vulnerability disclosure program is published, which could enhance transparency and incident response readiness. Incident response contact is provided via abuse@mailtrap.io. Overall, the security posture is good but could be strengthened by implementing recommended headers and policies.

Recommendations

  1. Enable HTTP Strict Transport Security (HSTS) with includeSubDomains and preload to enforce HTTPS.
  2. Publish and enforce a DMARC policy to improve email authentication and reduce spoofing risks.
  3. Enable OCSP stapling on the SSL certificate to improve revocation checking performance and security.
  4. Implement DNSSEC to protect against DNS spoofing and improve domain security.
  5. Create and publish a security.txt file or vulnerability disclosure policy to facilitate responsible reporting.

Contact details published on the site

Addresses
Legal name
Railsware Products Studio LLC
Registration number
EIN 85-4324808
Technical notes

Notes

The website uses a modern technology stack including HTML5, CSS3, and JavaScript with integrations for Google Analytics, Microsoft Clarity, Google Tag Manager, and HelpScout Beacon for customer support. Hosting is via Cloudflare, providing CDN and security benefits. Performance is moderate with a page load time of approximately 5.5 seconds and 28 resources loaded. The site is mobile optimized with responsive design and good navigation clarity. Accessibility is basic but functional. SEO is supported by proper meta tags and structured data in JSON-LD format. There is no detected CMS, suggesting a custom or proprietary platform. Technical risks include missing security headers and potential improvements in DNS and SSL configurations.
Standards and sources

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

Reviews of this site

Share your experience with mailtrap.live. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review mailtrap.live.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.