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
What are the key areas to cover in deliverability training for email marketers?
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Why are internal emails flagged as impersonation when using a 3rd party provider even with SPF and DKIM verification?
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Why are Hotmail emails being rejected after setting up DMARC?
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How can I optimize my SPF record to stay within the lookup limit when using multiple email sending services?
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What happens when a user re-subscribes after unsubscribing from an email list?
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How do Apple Mail user settings impact email deliverability and spam filtering?
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Can I skip a day during email warm up without hurting my IP reputation?
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Why does Gmail List-Unsubscribe only work on the second attempt?
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Why is Google Postmaster Tools (GPT) showing incorrect SPF and DKIM authentication rates?
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Is the 'anti-promo tab code' a legitimate way to bypass Gmail's promotions tab?
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What causes a 550 5.4.1 bounce error and how should it be handled?
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What is Google Postmaster Tools V2 and how do I access it?
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