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 are the requirements for RUA and RUF in DMARC policies?
Read article
How should I format Feedback-ID for Gmail?
Read article
Why was my Google Workspace email sending name suspended and how do I fix it?
Read article
What causes invalid RSA public key errors in DKIM records and how can I fix it?
Read article
Is it okay to use the plus sign in the RUA email address of a DMARC record?
Read article
How to resolve a 'connection refused' network error when sending emails?
Read article
Is it bad to have a hidden unsubscribe link in email footers?
Read article
Why is Yahoo/AOL throttling my email and returning a 552 error?
Read article
Is 'reply to unsubscribe' an acceptable unsubscribe option post Yahoo and Google's new requirements?
Read article
What is the difference between DKIM alignment and DKIM authentication and how do they relate to email bouncebacks and Hotmail blocks when using SFMC shared IPs?
Read article
How do DMARC records on subdomains override root domain DMARC policies?
Read article
How to handle DMARC failures when using TrustPilot email invitations with a custom domain?
Read article
