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Adam Lundrigan

Adam Lundrigan

CTO

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Adam Lundrigan is the Chief Technology Officer of DuoCircle, where he leads engineering across DMARC Report, AutoSPF, and the company's email security portfolio. His technical focus includes DMARC report processing infrastructure, DNS monitoring systems, and the SPF evaluation logic that powers DuoCircle's authentication tools.

Areas of Expertise

DMARC Report ProcessingDNS ArchitectureEmail AuthenticationSaaS EngineeringDNS MonitoringInfrastructure Automation

Credentials

  • CTO of DuoCircle LLC
  • Architect of DMARC Report's monitoring and reporting infrastructure
  • Technical lead for DuoCircle's email authentication platform
  • Leads engineering across DuoCircle's product portfolio

Articles by Adam Lundrigan

How to Check a DMARC Record Using Command Line (dig & nslookup)

What are the best practices to follow when generating a DMARC record for a high-volume mailer?

What are the risks of implementing strict DMARC alignment too quickly?

What are the most common reasons a DMARC DNS record fails to be recognized by receivers?

No SPF Record Found - What It Means, Why It Matters & How to Fix It

How a DMARC Record Stops Phishing and Domain Abuse

Which reporting formats and tools are best for analyzing DMARC alignment reports?

Which DNS providers make it easiest to add a DMARC record?

What are common signs that indicate my domain has no DMARC record published?

Where should I publish my DMARC record in my domain's DNS?