We are pleased to announce that Ivan Hadzhiev and Mohammed (Mo) Zaman, both of DMARC Advisor, are returning to the Nordic Domain Days stage in 2026.

The pair were on stage together at NDD 2025 with their well-received DMARC Bis (DMARC 2.0) session, and they are coming back with another joint deep-dive in 2026. Between them they bring nearly four decades of email security and authentication experience: Ivan with 25+ years across SMTP design and debugging and a particular passion for DMARC, BIMI, and Postfix implementation, and Mo with 13+ years and a hands-on focus on DMARC, SPF, DKIM, BIMI, MTA-STS, SMTP-TLS RPT, and DANE in real enterprise environments.

Their 2026 session, "Dead Links, Live Threats: The Hidden Risks of Dangling DNS," tackles a problem the industry knows is there but rarely names. What happens when a cloud resource dies, but its DNS record lives on? "Dangling DNS" entries are a silent invitation to subdomain takeover. Ivan and Mo will walk us through real-world examples of how attackers move in when customers move out, and they will lay out actionable cleanup strategies and automated solutions that work in practice. It is the kind of operational, hands-on Tuesday session NDD does well.

Welcome back, Ivan and Mo. We are looking forward to it.