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 fix the 'SPF unauthorized mail is prohibited' error
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How to fix common DMARC issues in Microsoft 365 and Google Workspace
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ARC is being retired: what the IETF draft means for DMARC teams
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DSI SMB1001:2026 DMARC and Email Security Updates Explained
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Google Postmaster Tools Domain Reputation and IP Reputation Have Been Discontinued
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Google Postmaster Tools V2: "Manage Domains" is Now Live!
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Yahoo announces changes to AT&T mail routing
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Orange.fr Postmaster is Tightening the Screws: What Their August 2025 Deliverability Updates Mean for You
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Email Deliverability Issues: Getting Your Messages to the Inbox in 2025
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Email Deliverability: Why 95% Success Rate No Longer Cuts It
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Boost Email Deliverability Rates: Technical Solutions from Top Performing Senders
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Why Your Emails Are Going to Spam in 2024 and How to Fix It
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