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 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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Is it legal to opt users back into email lists for operational emails after they've opted out and are there alternative campaign setups?
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How do I warm up a new subdomain and domain after switching domains in Salesforce Marketing Cloud?
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How to handle DMARC failures when email is forwarded by recipients?
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Does Google Postmaster Tools domain reputation include subdomains?
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Why are my Klaviyo preview emails not showing up in my inbox?
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