When DMARC breaks: Failures fixed & other stories of support success
was held on 22nd January 2026
About the Security Event
Email authentication failures can quickly turn into serious deliverability and security problems when DMARC is misconfigured or poorly maintained. This webinar focuses on real world DMARC failures and the support cases that helped resolve them, showing where implementations commonly break and why managing DMARC without expert guidance often leads to risk. The discussion centers on how small mistakes can escalate into broader email security issues.
The session walks through practical examples such as forgotten or overlooked domains, SPF limitations, expired DKIM keys and reputation damage caused by configuration errors. Valimail’s support team shares lessons learned from resolving complex edge cases and explains how expert intervention can prevent or recover from email based security incidents. This live webinar is designed for teams responsible for email security, authentication and domain protection.