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 now powers two-thirds of the top 6 US e-retailers.

You read that right. We are so excited to announce 250ok now brings advanced email analytics to supercharge the email programs of four of the top six US retail ecommerce companies by sales share (as of September 2018), according to eMarketer. What does this mean for you? Oh, only that we’re a trusted partner for […]

Email Mythbusters: Changing my IPs and/or domain will fix my reputation issues.

Imagine… You are welcoming guests into your home for a party. As people start to file in, you greet them with smiles and hugs, exchanging hellos and kind words. There is your best friend who, thankfully, brought wine and dessert. You greet your co-worker, too, and briefly chat about the weather. As you get ready […]

Email Validation 102: Pros and Cons

We’re back with our next blog in our partnership with Lauren Meyer, Mailjet’s global VP of delivery & head of operations, North America. What are the things you should expect to encounter, positive and negative, when you start cleaning your email marketing lists via validation? Considerations for the Marketer If you checked out “Email Validation […]




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