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 does 'rate limit exceeded' mean in email delivery, and how do I troubleshoot it?
Read article
How do I contact Proofpoint about IP address listing issues and what information should I provide?
Read article
Why are email security filters auto-clicking links in opt-in emails with Javascript and how can I prevent it?
Read article
What does the Gmail error '452 4.2.2 The email account that you tried to reach is over quota' mean, and how should I handle it?
Read article
What does a 550 5.7.1 error mean in email delivery?
Read article
How to correct the Yahoo "Visit Site" link in emails when it points to the wrong website?
Read article
What are the best practices for email deliverability when using SparkPost and Amazon SES, including reverse DNS, blacklist monitoring, and handling dedicated IPs?
Read article
Is it legal to reuse an email list after a company acquisition?
Read article
What is the most abused TLD (Top-Level Domain) for spam?
Read article
What are the best email deliverability tools and monitoring practices?
Read article
How to improve email delivery rates to WP and Onet mailboxes?
Read article
What are the best practices for handling a list bombing attack and account compromise?
Read article

