Domain Name System
Your DNS records define how email is authenticated, delivered and protected. Technologies such as SPF, DMARC, DKIM and MTA-STS all depend on DNS to publish their policies and configuration.
While DNS changes often appear small, they can have a significant impact on email security, deliverability and compliance. A modified record may introduce authentication failures, reduce protection against spoofing or affect the way email is routed and processed.
Email environments rarely remain static. New cloud services are introduced, suppliers change platforms, security policies evolve and infrastructure is regularly adjusted. Many email-related incidents can ultimately be traced back to DNS changes that were overlooked, undocumented or not fully understood.
Examples include:
Without historical visibility, troubleshooting can become difficult. When authentication fails or email delivery changes unexpectedly, administrators often know that something changed, but not exactly what changed or when it happened.
Understanding the current DNS configuration is useful. Understanding how that configuration has evolved over time is often even more valuable.
Historical visibility helps organizations correlate infrastructure changes with authentication failures, delivery issues and security events. It also provides valuable context during troubleshooting, audits and supplier transitions. Instead of relying on assumptions, teams can review exactly what changed and when those changes occurred.
MailReport continuously monitors email-related DNS records and maintains a complete history of detected changes. By providing visibility into configuration drift and policy modifications, MailReport helps organizations understand how their email security posture evolves over time.
This allows you to: