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


How do I seed test my triggered email?

Transactional or otherwise triggered email messages are likely some of the most important messages your organization sends to your clients or users. The definition of “triggered email” can vary, but for the purpose of this article, I’m going to refer to any type of message sent outside of a large-scale, “batch-and-blast” deployment, as triggered mail. […]

Ask LB: When should I be seed testing?

Hey LB, Now that I’ve got access to a seedlist testing tool, when should I actually test my seedlist? Is it best to test before, after, or during sending? What are your tips for getting the most out of seedlist testing? Uncertainly yours, Dr. When Hi Dr. When, This is a great question, and the […]

Hit the slopes, not the spam folder.

250ok is headquartered in Indianapolis. Needless to say, we don’t do a lot of skiing in these parts. Luckily, we are sponsoring MediaPost’s Email Insider Summit in Deer Valley, Utah, on December 8-11, meaning we get to share our email expertise while enjoying the beautiful scenery—probably not at the same time, but you never know, […]




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