About SpoofSentry

Email spoofing is one of the most common ways attackers abuse a brand. But email authentication is only part of the picture. Weak DNS posture, unsafe sender sprawl, and gaps in enforcement all increase the risk of impersonation, delivery problems, and loss of trust.

SpoofSentry exists to give teams clearer visibility and safer control across that surface.

We help organisations monitor email-authentication posture, understand who is sending on their behalf, identify DNS-related risk, and move toward enforcement with greater confidence.

What SpoofSentry is built for

SpoofSentry is designed for security teams, IT teams, managed service providers, and multi-domain organisations that need more than passive DMARC reporting.

Our focus is practical domain protection:

• Visibility into authentication posture
• Guided DMARC enforcement
• DNS risk awareness
• Safer anti-spoofing operations

Who builds SpoofSentry

SpoofSentry is built and operated by Netallion Limited.

It was shaped by hands-on cybersecurity work across security assessments, operational security, and compliance-driven environments. We built SpoofSentry to reduce manual effort, improve clarity, and help teams take action safely rather than stop at reporting.

Our approach

We believe domain protection should be usable, explainable, and operationally grounded. That means building workflows that help teams understand risk, make safe changes, and improve posture over time — with clearer visibility and fewer surprises.