Co-founder and CEO
Michael Ko
Michael Ko is co-founder and CEO of Suped, a platform dedicated to simplifying DMARC monitoring and enforcement. Prior to founding Suped, he built a track record leading large-scale technology teams and delivering complex solutions at prominent organizations like Amazon and Deloitte Digital.
His enterprise-grade technology experience now fuels his work on a critical and often overlooked area of cybersecurity. Michael advocates for making foundational security controls like DMARC accessible and manageable for organizations of all sizes, empowering them to protect their brand and their customers.
Michael is frequently cited in the press on email security, phishing, privacy compliance, and cybersecurity compliance, including Newsweek, Forbes Advisor, SmarterMSP, and BlockTelegraph.
Posts by Michael
What should I do if Apple blocks my emails due to a local policy issue?
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How do CNAME records affect DNS records like SPF, DKIM, DMARC, and MX?
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Which ISPs deliver DMARC reports and what configuration is needed?
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How to deal with spam from trix.bounces.google.com Google Forms?
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Why does Postfix show TLS handshake failure when connecting to an Exchange server?
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Why are abuse@ and postmaster@ email addresses important for email sending?
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Why am I getting TSS04 errors from Yahoo and how do I fix it?
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What are the best DMARC monitoring tools?
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Why are my SendGrid transactional emails not appearing in Outlook inboxes?
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How to contact Proofpoint about IP blocks and understand dynamic block behavior?
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How to stop unwanted Microsoft emails?
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How to configure SPF when sending from a subdomain with a different 'from' email domain?
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