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, SmarterMSP, and BlockTelegraph.
Posts by Michael
How to resolve Mailgun domain setup, DMARC, DKIM, BIMI, and IP blacklist issues?
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What are expected delivery times for one-time password (OTP) emails and how can they be measured?
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How to troubleshoot T-Online.de email deliverability issues and 550 errors?
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How to identify and filter out email bot clicks from newsletter reports?
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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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