About DMARC Defender
Why I Built DMARC Defender
I found most DMARC tools frustrating because they were built for specialists, not the people responsible for getting campaigns into the inbox. Between mandatory sales calls, SSO tax, and opaque pricing, the whole category felt harder than it should.
I built DMARC Defender to be a simple, affordable way to understand authentication issues and fix them quickly.
Background
I have about 20 years of software and security experience. I'm also the founder of csper.io . I previously worked on security and infrastructure at organizations including Yahoo! and MongoDB. DMARC Defender is my way of turning that technical background into a product marketing teams can actually use.
Philosophy
I believe deliverability tools should be simple, affordable, and honest. My goal is to help marketers and growing teams take control of sender reputation, email authentication, and inbox placement without hidden costs or enterprise friction.
Get in Touch
Have questions about DMARC, sender requirements, or improving inbox placement? Reach out directly. I'm always happy to hear from teams working on deliverability.