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
What tools can I use to simulate email traffic and stress test a Postfix cluster?
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Is there a legal requirement to keep unsubscribed email addresses for four years under CAN-SPAM?
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What is the PSBL (Passive Spam Block List) and how does it work?
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Why am I seeing iCloud email timeout errors?
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Why are Gmail bounce rates suddenly increasing?
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What is the optimal image file size for emails to avoid spam filters and ensure fast loading times?
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How can I identify the ESP used to send a spam email using the email headers?
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How many links in an email is too many for good deliverability?
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Why is the From Email Address showing instead of From Name in SFMC?
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Can I email users who have Apple's private relay email addresses?
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What are the correct image dimensions and steps to add an animated GIF profile picture to my Google account?
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What causes the Gmail DSN '451 4.3.0 Mail server temporarily rejected message' and how to resolve it?
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