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 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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What to do about high bounce rates from iCloud 'user over quota' errors?
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Why does Google Postmaster Tools show delivery errors when emails are delivered?
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Will BIMI work on multiple levels of subdomains?
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Why did 50k Yahoo email addresses bounce with a disabled mailbox error after ESP migration?
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What are the best practices for SPF records and avoiding CNAMES for email authentication?
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What is the difference between ESMTPS and ESMTPSA in email headers?
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Why are my Salesforce Marketing Cloud emails going to spam after switching to a private domain and what can I do to fix it?
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