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
Why does Google Postmaster Tools show non-compliance despite a 0% user-reported spam rate?
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Why are emails intermittently failing SPF and DKIM authentication with new Microsoft standards?
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What are Microsoft's Compliant P2 (Primary) Sender Address requirements for email deliverability?
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How to improve email sender reputation after a low period?
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What causes SPF verification failures for emails forwarded to Gmail?
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How do ESPs reliably distinguish human vs. bot email opens and clicks?
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Why are Microsoft Outlook 550 5.7.515 access denied errors occurring due to DKIM failures, and how do message encoding and modification affect them?
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How to resolve Yahoo email deferrals (TSS04) and internal ESP timeouts?
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Why are my marketing emails moving from Gmail inbox to spam?
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Does an email service provider (ESP) impact email deliverability, particularly for operational emails?
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Troubleshooting 5.1.9 DKIM rejection errors from t-online.de
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Why is my gmail postmaster reputation stuck on 'bad' and how can I fix it?
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