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 to fix SMTP error code 5.4.1 when sending cold outreach to Office 365?
Read article
What are the best and most trustworthy URL RBLs?
Read article
How to handle false positive reports from Netcraft and typo-squatting spam traps?
Read article
What should I do if a user's email hard bounced and they aren't receiving emails?
Read article
How can I prevent cold emails from harming my domain reputation?
Read article
What are some domains that publish BIMI records?
Read article
Why is outbound TLS important for email marketing?
Read article
Why am I getting a max message size exceeded error on some emails but not others?
Read article
How do I fix Yahoo bounce message '554 Message not allowed - Headers are not RFC compliant'?
Read article
Why is my G Suite IP blacklisted and emails going to spam?
Read article
Do X-Headers negatively impact email deliverability?
Read article
Why are emails sent through Apple Private Relay going to spam?
Read article

