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
How to resolve Yahoo inbox delivery issues during IP warming?
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Are cold outreach 'best practices' actually illegal spam tactics?
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Does DMARC guarantee emails will not be flagged as spam?
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Why is Proofpoint blocking my Sendgrid IP address and how can I resolve it?
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How does domain reputation work with subdomains and FQDNs in email sending?
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Do email unsubscribes negatively affect sender reputation?
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What does a UCEPROTECTL3 blocklist mean for email deliverability and pristine spam traps?
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How should DKIM selector names be interpreted and what is the recommended DKIM key size?
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What do Yahoo 421 errors mean and how to resolve them?
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How do I set up SPF and DKIM records for new subdomains when using third-party email services?
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How do shared IP pools and sending domains impact email sender reputation for ESPs?
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Why am I getting a lot of strange signups to my newsletter?
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