CSA Requires DMARC For Cyber Essentials Mark Certification

Key Takeaways

DMARC is a baseline requirement/recommendation under CSA’s Cyber Essentials Mark, reinforcing email authentication as a core cybersecurity control.
Email spoofing and phishing risks must be actively mitigated, not just acknowledged, to meet certification expectations.
Proper alignment of SPF, DKIM, and DMARC is essential; publishing a DMARC record alone is not enough.
Visibility and ongoing monitoring matter, as CSA emphasizes sustained cybersecurity hygiene beyond one-time setup.
DMARC management platforms like PowerDMARC simplify compliance, helping organizations implement, monitor, and enforce email authentication with confidence.

In an era where email is both a core business tool and a major threat vector, the Cyber Security Agency of Singapore (CSA) has elevated email security in its national cybersecurity benchmarks.

One of the key components highlighted in the Cyber Essentials Mark – Singapore’s baseline cybersecurity certification, is the implementation of DMARC (Domain-based Message Authentication, Reporting & Conformance) to protect organisations from email-borne threats.

What Is the Cyber Essentials Mark?

The Cyber Essentials Mark is a cybersecurity certification framework designed by CSA to help organisations adopt essential safeguards against common cyberattacks. It focuses on fundamental cybersecurity controls across areas like malware protection, secure configurations, incident response, and data protection.

Certified organisations receive a mark valid for two years.

Why Email Security Matters

Email remains one of the primary avenues for cyberattacks, especially phishing and business email compromise (BEC). Cybercriminals can spoof legitimate domains, trick users, and gain unauthorised access to sensitive information or systems. Protecting email channels is not just best practice, it’s foundational to organisational security posture.

Email authentication protocols like DMARC play a pivotal role in defending against such threats.

DMARC in Cyber Essentials: What the Standard Says

Within the Cyber Essentials Mark’s requirements, email security controls such as SPF, DKIM, and DMARC are highlighted as part of baseline security measures. While the bulk of the certification covers broad cybersecurity practices, one key extract from the requirements/recommendations indicates that:

“Email authentication protocols such as Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication Reporting and Conformance (DMARC) should be implemented to provide email security.”

This means that implementing a DMARC policy, along with its aligned SPF and DKIM configurations, is recommended by CSA and is a part of the cybersecurity controls auditors will look for when assessing an organisation for the Cyber Essentials Mark.

What It Means for Organisations

If your organisation is pursuing the Cyber Essentials Mark certification, email authentication through DMARC is part of the checklist to secure email domains and demonstrate adherence to baseline cybersecurity standards.

Here’s how DMARC helps:

Improves Protection Against Spoofing

DMARC enables domain owners to specify which mail servers are authorised to send on their behalf, thwarting unauthorised spoofing attempts that are commonly used in phishing.

Enhances Email Deliverability

Proper email authentication improves trust with mail providers, reducing the chance that legitimate messages are flagged as spam.

Provides Visibility and Reporting

DMARC’s reporting mechanisms let security teams see who’s sending email on their domain’s behalf, which is crucial for identifying abuse attempts.

Practical Steps to Meet This Requirement

To align with CSA’s Cyber Essentials DMARC expectations:

Publish a DMARC DNS Record: Start with a monitoring policy (p=none) to gather data without impacting delivery.
Deploy SPF and DKIM: Ensure SPF records list all authorised mail senders and DKIM signing is enabled for trusted message integrity.
Progress to Enforcement: Move towards stricter DMARC policies (p=quarantine or p=reject) as your organisation’s email channels stabilise.
Monitor DMARC Reports Regularly: Use aggregate and forensic reports to uncover unauthorised use and refine authentication settings.

How PowerDMARC Helps Organizations Meet CSA Cyber Essentials Mark Requirements

Implementing and managing DMARC manually can be complex, especially for organizations with multiple domains, third-party senders, or limited internal expertise. This is where PowerDMARC’s DMARC management platform simplifies compliance and operational execution. We offer:

Centralized DMARC Management offering a single dashboard to manage DMARC, SPF, and DKIM across all domains.
Simplified policy deployment so organizations can safely move from monitoring (p=none) to enforcement (p=quarantine or p=reject) safely, reducing the risk of legitimate email disruption.
Human-readable DMARC reports translate complex XML data into clear insights, allowing security teams to identify unauthorized senders, misconfigurations, and spoofing attempts quickly.
With automated monitoring, alerts, and policy oversight, PowerDMARC helps organizations maintain ongoing compliance.

Final Thoughts

CSA’s inclusion of DMARC within the Cyber Essentials Mark certification requirements is a significant evolution in Singapore’s foundational cybersecurity standards. It reflects a global shift toward more robust email authentication as a key component of organisational security hygiene.

By implementing DMARC, not just as a checkbox but as an ongoing practice, organisations strengthen their email defenses, reduce risk, and position themselves for successful Cyber Essentials certification.

About
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Ahona Rudra

Domain & Email Security Expert at PowerDMARC

Ahona is the Marketing Manager at PowerDMARC, with 5+ years of experience in writing about cybersecurity topics, specializing in domain and email security. Ahona holds a post-graduation degree in Journalism and Communications, solidifying her career in the security sector since 2019.

CSA Requires DMARC for Cyber Essentials Mark Certification