Cyber security and DMARC services for Welsh businesses

Why Welsh businesses need DMARC services

If your domain doesn't have DMARC configured correctly, attackers can send emails that look like they come from you. They can impersonate your directors, your finance team, your suppliers. The recipient sees your domain, trusts the email, and clicks. This is called domain spoofing, and it's one of the most common attack vectors facing UK businesses — including those across Wales.

DMARC (Domain-based Message Authentication, Reporting and Conformance) is the standard that tells receiving mail servers what to do when an email fails SPF or DKIM checks. Without it, you have no control over who sends email from your domain. With it, you can reject fraudulent messages, monitor who's impersonating you, and protect your customers, suppliers and staff from phishing attacks that use your name.

DMARC implementation for Welsh businesses

We implement DMARC for businesses across Wales — from Cardiff and Swansea to Newport, Wrexham, Bangor and throughout South and North Wales. Our approach is practical and methodical:

• Current state assessment — we check your existing SPF, DKIM and DMARC records to understand what's configured and what's missing
• SPF alignment — ensure all authorised mail sources are included in your SPF record, and that it stays within the 10-lookup limit
• DKIM configuration — set up or verify DKIM signing for your email platforms (Microsoft 365, Google Workspace, or your current provider)
• DMARC policy deployment — move from no policy (p=none) through quarantine to reject, with monitoring at each stage
• Aggregate and forensic reporting — configure RUA and RUF records so you can see who's sending email from your domain
• Ongoing monitoring — review DMARC reports to identify new spoofing attempts and legitimate mail sources that need authorising

What DMARC protects against

DMARC doesn't stop all phishing — nothing does. But it stops the most common type: emails that spoof your domain. This includes:

• Invoice fraud — attackers impersonating your finance team or suppliers to redirect payments
• CEO fraud — emails that appear to come from a senior leader requesting urgent transfers
• Brand impersonation — phishing emails sent from lookalike domains or directly from your spoofed domain
• Supply chain attacks — compromised emails that appear to come from trusted partners

Welsh businesses in sectors like legal, financial services, manufacturing and public sector are particularly targeted because they handle sensitive data and transactions. A properly configured DMARC record is the single most effective control against domain-based email fraud.

DMARC and compliance

DMARC is also a compliance requirement. Cyber Essentials requires email authentication controls as part of the secure configuration baseline. ISO 27001 implementations reference DMARC within the context of email security policies. For Welsh businesses bidding on UK government contracts, DMARC is increasingly expected alongside Cyber Essentials certification.

If you're pursuing Cyber Essentials certification, having DMARC in place strengthens your secure configuration evidence and reduces the risk of assessment failure on email-related controls.

Beyond DMARC: wider cyber security for Wales

DMARC is one piece of the email security puzzle. We also help Welsh businesses with:

• Cyber Essentials certification — the UK government-backed baseline, required for many public sector contracts
• Vulnerability management — continuous scanning and remediation through VulnGuard
• Penetration testing — web application and infrastructure testing via trusted UK partners
• ISO 27001 readiness — gap analysis and audit preparation for framework compliance
• Incident response — playbooks, tabletop exercises and breach coordination

Start with your domain

Check your domain's email security in under 30 seconds. Our free passive scan reads your public DNS records — no sign-up, no scanning your network.

UK-registered cybersecurity specialists  ·  Working across Wales  ·  Fixed-fee consulting