250ok has built a best-of-breed platform that addresses the concerns of today's data-driven marketers.


Len Shneyder
VP of Industry Relations


250ok Reputation has changed the way we monitor clients. I absolutely love the level of detail this tool provides, it takes all of the guesswork away and allows me to focus on fixing the problem as quickly as possible.


Kevin Huxham
Director of Deliverability

250ok has consistently proven themselves to be the leader in inbox placement optimization and monitoring. From their best-in-class products to their support team, 250ok provides an essential 24/7 service for Sailthru's global delivery team.


Ken Pfeiffer
Global Director, Delivery


Great group of people who really know the business inside and out. They have some of the most advanced and sophisticated features of anyone in the industry.


Tim Starr
Senior Director of Deliverability

250ok helps us quickly identify senders who may not be getting optimized delivery results. This way the team can focus on working with customers instead of reviewing piles of data.


Kiersti Esparza
Director, Email Privacy & Deliverability


250ok is one of our go-to research tools to help us manage our large group of email clients. From SNDS data to blacklist alerts, it's a must-have for our team.


Josh Nason
Email Reputation Manager

Resources for #SeriousSenders


The Secret Lives of Postmasters: What do Postmasters see daily?

Some common questions Postmasters field from senders are, “What happens to all the Postmaster tickets we submit? Does anyone look at them? What’s even going on there?” Before coming to 250ok, I worked as an AOL Postmaster. So in short, I know some stuff, and I’m happy to share what I can. So, we could […]

Deliverability 101: What’s the difference between spam trap networks and sensor networks?

If you’ve read our Deliverability Guide, you already have some understanding of what spam traps are and how they operate. A collection of these is called a spam trap network. Similarly, we also touch upon sensor networks in our guide. Even to a seasoned email marketer, these concepts can become confusing. We’re not down with […]

Deliverability 101: The true story of email authentication.

We can’t really finish a conversation about DNS, subdomains, and IP addresses without naturally progressing into email authentication. Why? Authentication is made up of all of these topics and a little more. It’s a nice building block in the tower of responsible email marketing. In the early, Wild-West days of email marketing in the early […]




Ready to get started?