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
How do I handle spoofing when DMARC reject is set but not enforced on inbound mail server?
Read article
Why are Yahoo/AOL blocking my emails and what can I do about it?
Read article
What are Barracuda filter rules and how are custom rules created?
Read article
Should I use multiple subdomains for different email streams or a single stream?
Read article
What causes a DMARC record to not propagate correctly on GoDaddy?
Read article
Why doesn't Outlook webmail trigger List-Unsubscribe when using the quick action?
Read article
Why are Optonline.net emails bouncing but sometimes still delivering?
Read article
What are the pros and cons of using Salesforce Marketing Cloud's Custom List Detective?
Read article
How to troubleshoot emails landing in spam despite passing DKIM, SPF, and DMARC?
Read article
Is BIMI easily spoofed and are there drawbacks to BIMI implementation?
Read article
How do I set up DMARC records for subdomains?
Read article
What are common terms for the envelope.from domain in email marketing?
Read article

