Let’s authenticate the
world’s communication 

Valimail, a Digicert company, is the global leader in automated DMARC and Zero Trust email authentication. We help organizations of all sizes protect their brands, prevent phishing, and strengthen long-term email security.

Communication is currency and we’re here to protect it.

Email is the backbone of modern business and the primary attack surface in the age of AI. When attackers can impersonate your domain, they do not need to breach your systems. They exploit trust.

We help organizations move beyond basic enforcement to continuously protect their email identity by stabilizing authentication, aligning with mailbox provider requirements, and maintaining visibility into identity risk.

More than ~347.3B emails are sent every day. Email is powerful, but only when identity is verified and trust is maintained. Our mission is to make email identity as reliable as digital trust itself.

As part of DigiCert, we extend that mission across the digital trust ecosystem with expertise in certificates, encryption, and DNS infrastructure.

Meet Valimail's 

Leaders

Valimail operates as a dedicated DigiCert business unit, led by a focused executive team responsible for product innovation, go-to-market strategy, and customer success.

Deshawn Dickens

VP of Global Revenue

mike chester photo

Mike Chester

VP of Global Partnerships

scott ziegler

Scott Ziegler

VP of Product

Headshot - Trevor Boardman

Trevor Boardman

Head of Business Operations and Strategy, Email Trust

Valimail is part of DigiCert, backed by experienced leadership shaping the future of digital trust.

Join our mission

Valimail continues to grow as a DigiCert company. We are hiring ambitious, thoughtful people who want to shape the future of digital trust and restore confidence in email.

Valimail Industry Contributions

Founded by Alexander Garcia-Tobar and Peter Goldstein, Valimail pioneered automated DMARC in 2015 and helped define the category while driving global adoption. Today, as part of DigiCert, we continue to lead standards advancement and industry collaboration to strengthen digital trust.

Internet Engineering Task Force

  • Secretary of IETF DMARC Working Group
  • Contributor

AuthIndicators Working Group

  • Chair

Anti-Phishing Working Group

  • Contributor

Internet Society

  • Member

Online Trust Alliance

  • Member

Global Cyber Alliance

  • Member

Certified Senders Alliance

  • Member

Trusted Domain Project

  • Contributor

Center for Internet Security

  • Member

Messaging Malware Mobile Anti-Abuse Working Group

  • Board Member
  • Technical Committee Co-Chair
  • Collaboration Committee Co-Chair

DNSAdapter

Postshift

Mailman ARC Patch

Leading the market—beyond DMARC

Since pioneering automated DMARC in 2015, we’ve helped define how organizations secure their email identity at scale. But enforcement was only the beginning. 

Today, we go beyond automation to deliver continuous identity protection—stabilizing authentication, aligning with evolving mailbox provider requirements, and expanding visibility across the full email ecosystem. The Valimail platform continues to set the standard for innovation, threat visibility, and resilient email security in a rapidly changing threat landscape. 

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Deshawn Dickens

VP of Global Revenue

Deshawn is the Vice President of Global Revenue. He brings 15+ years of experience in sales and sales leadership at companies in the start up phase to the Fortune 500. In previous roles he’s managed teams from 10 to 50+ and revenues from $15m to $150m. A people first leader who focuses equally on revenue growth and employee development.

Outside of work he enjoys spending time with his wife and coaching his son’s various sports teams while also rooting for the Eagles, Lakers, and his alma mater, North Carolina State University.

mike chester photo

Mike Chester

VP of Global Partnerships

Mike Chester is the Vice President of Global Partnerships at Valimail. He brings 12+ years of experience in building partner programs and developing strategic alliances in the Tech industry. Mike is passionate about finding win-wins and innovation that create long-term value for all involved.

Prior to his current role at Valimail, Mike was VP of Business Development at Equifax, where he managed the Global Alliances and Channel Partners team to 7x growth in partner-sourced New Logo ARR over a two year period.

Mike holds his Bachelor’s degree in Advertising from the University of Illinois Urbana-Champaign and MBA from the University of Chicago Booth School of Business. Outside of the office, Mike enjoys spending time with his wife and daughter, exercising, listening to podcasts and nerding out on the latest and greatest gadgets.

scott ziegler

Scott Ziegler

VP of Product

Scott Ziegler is the Vice President of Product at Valimail. With over two decades of experience, Scott has an impressive background in software engineering and product management, spanning from pre-seed SaaS startups to Fortune 50 companies.

Prior to his current role at Valimail, Scott served as the Head of Product at Return Path, a pioneering company in DMARC authentication, and held the position of Chief Product Officer at Validity. He earned his Bachelor of Science degree from Muskingum University.

Outside of the office, Scott enjoys quality time in Colorado’s vibrant landscapes with his wife and two children. His hobbies include fly fishing and exploring small mountain towns.

Headshot - Trevor Boardman

Trevor Boardman

Director, Business Operations

Trevor Boardman is the Director of Business Operations at Valimail. He founded the company’s Business Operations function and continues to lead its evolution, driving initiatives that improve decision-making, accelerate growth, and strengthen efficiency. Trevor also leads Valimail’s data and AI strategy, shaping how the company uses analytics and emerging technology to scale effectively. Earlier in his career at Valimail, Trevor managed Product Support, where he built automation systems and scaled customer-facing teams.

Before joining Valimail, he worked in information security at Licking Memorial Health Systems, where he led major initiatives in endpoint security, data governance, and incident response.

Outside of work, Trevor enjoys spending time with his family, being outdoors in the Ohio countryside, fishing and hunting, and tinkering with projects that inevitably grow larger than planned.

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