We’ll fly with you.

It’s dangerous to go alone! Take us with you.

Email is the lifeblood of your business. Top ESPs, CDPs, and agencies choose 250ok to power their inbox testing, reputation monitoring, DMARC, address validation and more. Why? They trust our data.

Most importantly, we understand our partners. Because we know your world, thanks to a large handful of people at 250ok who’ve worked at ESPs, we continue to innovate and build products that make your job easier.

We’ll be their wingman any time.

"250ok is the smartest money marketers can spend on their email program outside of their ESP investment. An absolute must. 10/10."

Kiersti Esparza, Marketo
Director - Email Privacy & Deliverability

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

Len Shneyder, Twilio SendGrid
Vice President - Industry Relations

Empower your team.

Email-based businesses like yours count on us to provide the highest-fidelity data available, delivered in intelligent ways. We keep our partners happy and engaged based on the level of trust in our data.

Continuous product innovation is another key reason partners that start with 250ok stay with us for years. No other deliverability company develops more, faster, and no one else provides a broad set of tools used by delivery ops, compliance, account managers, and sales teams alike.

Email Experts: Alex Heinz

Entrust your clients to us.

Your customer has deliverability issues requiring witchcraft and wizardry to fix? You really have to trust a partner to hand off your customer, and we know it. Our business was built on us honoring a commitment to our referral partners to treat their customers like gold.

We provide the most robust single-point solution available for email analytics, industry-leading customer support, expert assistance—all of which is designed to support you, not throw you under the bus.

250ok as the data warehouse and middleware

Enhance your product offering.

For major senders looking for a GTM partner that can scale with their business and provide best-in-class products to end-users, we might be the solution of your dreams, allowing you to bring 250ok to your customers.

  1. Data Warehouse250ok accepts SMTP/MTA data via web hooks, private API endpoints, syncing external APIs, or parsing log data from external sources like FTP or SFTP.
  2. MiddlewareWith 250ok’s strong track record of productizing email analytics at scale, you gain access to additional value-adds all under one roof (single vendor, single contract).
  3. Seamless Experience250ok does the heavy lifting to offer two seamless integration options: direct API integration or a white-labeled product portal leveraging co-branding and Single Sign On (SSO).

We’ve got the proven experience to support big opportunities, and partners willing to tell you how.