NYOXA LABS

Email & Domain Security Assessment

Reduce spoofing, phishing, impersonation and poor mail security configuration across business domains.

Engagement deliverables

Email security posture reportSPF/DKIM/DMARC recommendationsSpoofing risk ratingDNS recommendationsImplementation checklistOptional retest after DNS changes
Start scope request

Purpose

When this assessment fits

Email remains the primary vector for cyberattacks, including phishing, business email compromise (BEC), and brand impersonation. This assessment is critical for organizations that rely on email communication and want to actively protect their brand reputation and ensure reliable email deliverability. By thoroughly reviewing and optimizing your domain's DNS records (SPF, DKIM, DMARC), we help you prevent attackers from sending fraudulent emails on behalf of your domain, protecting both your customers and your internal teams.

What we review

  • SPF (Sender Policy Framework) records
  • DKIM (DomainKeys Identified Mail) configuration
  • DMARC (Domain-based Message Authentication, Reporting, and Conformance) policy
  • MX records
  • DNS alignment
  • Email spoofing risk
  • Lookalike domain concerns
  • Microsoft 365 exposure indicators
  • Google Workspace exposure indicators
  • Mail provider configuration concerns

Common risks we help identify

  • Missing or weak DMARC policy allowing domain spoofing
  • SPF records that are too permissive, exceeding DNS lookup limits, or misconfigured
  • Missing DKIM alignment or weak cryptographic keys
  • Domains that can be easily spoofed by attackers to conduct phishing campaigns
  • Lookalike domains (typosquatting) that may confuse customers or employees
  • Weak DNS configuration exposing infrastructure details
  • General business email posture gaps that reduce deliverability and security

Business value

  • Stop Brand Impersonation: Prevent cybercriminals from using your domain to phish your customers or partners.
  • Improve Email Deliverability: Ensure your legitimate marketing and transactional emails reach the inbox, not the spam folder.
  • Protect Customer Communications: Build trust by ensuring that emails claiming to be from your organization are genuinely yours.
  • Reduce Phishing Success Rates: Significantly lower the risk of successful Business Email Compromise (BEC) attacks targeting your employees.

Methodology coverage

We begin by analyzing the public DNS records associated with your primary domains and known sending infrastructure. We evaluate the configuration and alignment of SPF, DKIM, and DMARC records to identify weaknesses that could allow spoofing. We also conduct a review for lookalike domains and analyze the general security posture of your email provider configuration (where visibility permits). We provide clear, step-by-step guidance on how to correctly configure these records to achieve a strict DMARC enforcement policy without disrupting legitimate mail flow.

What we need from you

  • Domain names
  • Email provider details
  • Approved contact
  • Permission to review public DNS records
  • Optional admin screenshots or guided review for deeper configuration

Frequently asked questions

Can this prevent all phishing?

No. While no service can prevent all phishing, this assessment drastically reduces domain spoofing and impersonation risk, which are among the most dangerous and common phishing vectors.

Do you change DNS records for us?

We provide the recommended, exact DNS records and implementation guidance. Actual implementation should be performed by your domain/email administrator, though it can be included as a separate support scope if needed.

Ready to scope Email & Domain Security?

Request an authorized NYOXA LABS security assessment and get a clear scope, practical deliverables and professional reporting.

Check Email Security
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