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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


250ok Email Experts Series: How to use email headers.

This is our last video in the Email Experts Series in 2018. To close us out, we’ll look at email headers and how best to use them to your advantage in your marketing email. All episodes in this series are available via mp3 on Soundcloud and Stitcher. You can see all our videos in one […]

GDPR Today and Tomorrow: A conversation with Simon McGarr, a data privacy lawyer.

As with all legislation, there is a certain amount of discomfort, misconceptions, and rumors that start to sound like sage advice as they become repeated, shared, and incorporated into the daily practices of those searching for a guiding light to lead them to compliance. But like a moth drawn to a flame, well-intending practitioners can […]

The Year in Email 2018

The Black Friday emails are deleted, marketers’ email lists are checked twice, we pretty much know which senders have been naughty or nice. Another year in email is coming to a close, and boy, what a ride. While most thought leaders are busy making predictions about 2019, we like to learn from the past to […]






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