HI, WE'RE 250OK.

Marketo Adobe SendGrid SparkPost

Email is in our DNA.

Brands responsible for billions of dollars in revenue depend on 250ok to maximize email marketing performance. Our products and integrations allow customers to gather advanced insights into email deliverability, sender reputation, fraud protection, and consumer engagement.

250ok began reinventing analytics and deliverability software in 2011. The company started as a pet project by former ExactTarget email deliverability manager Greg Kraios. Now our email analytics inform senders like Marketo, SendGrid, SparkPost and Adobe, the combination of which is responsible for more than 25 percent of the world's legitimate email. We revolutionize email management software for businesses of all sizes, creating innovative tools for the modern sender.


Leadership Team



Greg Kraios
Founder and CEO

Ryan Pfenninger
Chief Technology Officer

Alex Griffis
VP Product

Paul Midgen
VP Engineering

Jeff Hansen
VP Sales

Tim Moore
VP Customer Solutions

Joe Montgomery
VP Marketing

Paul Fearnow
Director, Operations

We're Hiring!

Email is in our DNA. Innovation drives our culture. Join us.

View Careers


Are you a #SeriousSender?