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


Wish you could Send with Confidence? Say no more.

Our partner (and dear friend) SendGrid is in the midst of a very cool undertaking; their international Send with Confidence Tour. We’re pumped to support them on the next stop: New York City, May 17! We’ll be sending our Swiss army knife of deliverability, Tim Moore, VP of customer solutions, to participate in a chat […]

250ok & SparkPost are offering a FREE GDPR-focused webinar!

We’ve been watching and preparing for the General Data Protection Regulation (GDPR) for years. Now we are in the final stretch before it goes into effect on May 25, 2018. As we watch the clock tick down to go-time, are you prepared to adhere to all the regulations in place to stay compliant and to […]

Our Global Benchmark Report Reveals Email Deliverability is Improving

We love email. Like…a lot. So much so that we reviewed the historical reporting of nearly 1 million seed-based tests, using seed data within the 250ok Inbox tools and campaigns sent between 2016 and 2017, to illustrate email deliverability to our clients’ most important geographical regions. For newer senders who are unfamiliar with seed-based inbox […]




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