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
Are hyphens or dashes allowed in email From names and subdomains?
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What tools and methods are available to generate DKIM public and private keys?
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DMARC Policies for Organizational Domains and Subdomains Explained
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Troubleshooting Office 365 DKIM and SPF email authentication failures
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How long should email A/B tests run and what statistical significance is needed for subject line winners?
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What is header.i in email headers, how does it relate to DKIM, and does it affect sender reputation?
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How to fix personal emails going to spam from a custom domain?
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How does CNAME delegation enable SPF and DKIM authentication for email sending?
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Does Microsoft SNDS monitor reputation for Office 365 hosted domains?
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What are the best practices for DNS lookups, SPF records, and subdomain usage for email deliverability?
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What are the volume requirements for SNDS and GPT data?
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How to prevent Outlook from flagging email links as unsafe?
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