All of the signals, under one roof.



Us Them
Proprietary spam trap network
Feedback Loop monitoring
Real-time blacklist monitoring
Spam trap monitoring product with activity-based alerting
Spam trap monitoring on shared IPs
Email, SMS, Slack, and HipChat Alerts
Organize IPs/domains into profiles

If it's meaningful to your reputation, you can monitor it in real time with 250ok.

Global Spam Trap Network

Tired of vague spam trap counts and lack of visibility? Us too. That's why we built our own trap network so we can offer a diverse set of data sources, collect and analyze millions of relevant messages per day, and deliver the value email marketers need to improve their program.


Complaint Monitoring

By collecting your feedback loop reports, we'll detect sudden increases in complaints that may cause deliverability issues, and help you suppress your most troublesome recipients.

Blacklist Alerts

Blacklistings can dramatically alter your ability to deliver mail to your customers. 250ok Blacklist was designed with speed and flexibility to notify you of issues before you send.

SNDS & Signal Spam

Integrate and automate your Microsoft SNDS & Signal Spam reporting to track spam traps and complaint rates at Outlook.com, Laposte, Sfr, and Orange.

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 […]




Ready to get started?