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Get advanced analytics on everything email.


All of the signals

A single email management platform

Build a customized email management solution.


World-Class Deliverability

Emails that don't reach the inbox are simply wasted opportunities. 250ok tracks every aspect of your email program to ensure that your messages reach your customers.

Expert Services and Support

You won't find any junior-level script readers here. Ask for examples of deliverability issues 250ok diagnosed, triaged, and quickly resolved after other competitors failed.

Complete Customization

Live outside the app with custom email, SMS, Slack, HipChat, PagerDuty, and webhook alerts. Set it and forget it. Focus on what matters to you, free of pointless notifications.

The 250ok Difference:



Us Them
International seed coverage at 100+ mailbox providers
Design integration with Litmus & Email on Acid
Integrated with major email service providers
Spam trap & phishing monitoring with alerts
In-house DMARC monitoring & guidance
Custom Email, SMS, Slack, and HipChat alerts
Compare performance across any campaign, device, or client
Full API or white label integration

Resources for #SeriousSenders


Are inbox placement rates improving or declining across the world?

Do you know your inbox placement rate (IPR)? If you don’t, yikes, we really need to talk. But if you do, have you wondered how it compares against other senders? We’re always thinking about things like this, so we did a big data dump and jumped right into it. We looked at global IPR over […]

Email Experts Series: BIMI 101

We’re always working to stay innovative and at the very forefront of email technology. That’s why we’re proud to be a part of the Brand Indicators for Message Identification (BIMI) working group! However, since it’s a newer feature available only at a select number of mailbox providers right now, the requirements and benefits still aren’t […]

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. […]






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