NCSC Mail Check alternative for UK organisations
NCSC Mail Check helped UK organisations understand their email authentication posture. SpoofSentry continues that mission with continuous monitoring, guided enforcement, and compliance evidence aligned to the Cyber Assessment Framework.
Why organisations are moving from NCSC Mail Check
NCSC Mail Check provided a valuable baseline for email authentication monitoring across UK government and public sector organisations. As the landscape evolves, organisations need deeper visibility, guided remediation, and continuous enforcement tracking.
SpoofSentry builds on that foundation with real-time DMARC aggregate and forensic report parsing, sender discovery with classification, guided policy progression from p=none to p=reject, and compliance evidence bundles that map directly to the Cyber Assessment Framework (CAF).
CAF-aligned compliance evidence
SpoofSentry generates one-click compliance evidence bundles aligned to NCSC Cyber Assessment Framework objectives. Map your email security posture directly to CAF categories B2 (Identity and Access Management) and B5 (Resilient Networks and Systems).
Export audit-grade evidence for internal governance reviews, supply chain assurance, or NIS2 compliance reporting — all from the same dashboard you use for daily DMARC operations.
Guided enforcement for UK domains
Most UK organisations adopted p=none DMARC policies during the initial push for email authentication. The enforcement gap remains: fewer than 10% have progressed to p=reject.
SpoofSentry guides you through safe enforcement with readiness gates, impact simulation, sender authorization workflows, and rollback safety nets. See exactly which senders would be affected before changing policy.
Continuous monitoring, not periodic checks
Unlike periodic scanning, SpoofSentry processes DMARC reports continuously. Detect spoofing attempts, configuration drift, and new senders within hours, not weeks. Get alerts via email, Slack, Microsoft Teams, or PagerDuty.
SIEM integration with Splunk, Elastic, Microsoft Sentinel, and Datadog means your SOC has full visibility without switching tools.
UK data handling
SpoofSentry processes DMARC aggregate and forensic reports. No email content is accessed or stored. All data is encrypted at rest (AES-256) and in transit (TLS 1.3). Retention periods are configurable by plan tier.
For detailed information about our data handling practices, see the Trust Center.