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


MAPP and 250ok want you to start AMPing up your email.

We were really hyped to see Gmail support for AMP for Email announced earlier this year. This new frontier will be a challenge to master, so for those of you who want to dip your toe into AMP for Email but don’t know where to start, join us for a webinar! We’ve partnered with our […]

Email Validation 103: What questions should you ask vendors?

We’re back with our next blog in our partnership with Lauren Meyer, Mailjet’s global VP of delivery & head of operations, North America. This time, Lauren and Alex give you the right questions to ask when you’ve finally decided to take the plunge on email list validation. Before we begin, it’s important to consider why […]

Got 30 minutes? We’ve got a webinar for you.

We hear it a lot. An email marketer has a trusted email service provider (ESP), so they think they wouldn’t benefit from an email analytics platform like 250ok. That’s not necessarily the case. We teamed up with MessageGears to explain how you can work with the right tech partners to give you optimal deliverability, and […]




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