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


What we know about the Google Postmaster Tools outage.

**Update, 6/26: It looks like GPT is back up and running!** Daily senders all over the world look at their email statistics according to how Google and Gmail users view their performance. From complaints to reputation data, these numbers are calculated and shared by Google with marketers through Google Postmaster Tools. However, on June 13, […]

Email on Tap Episode 10, with Lili Crowley, Postmaster, Verizon Media

Our newest video is a little longer than our previous episodes, but it is for a really great reason. Anthony Chiulli, 250ok’s director of product marketing, spent time with Lili Crowley, postmaster at Verizon Media, which includes well-known entities Verizon.net, AOL, and Yahoo, to shed light on a commonly misunderstood function of the email ecosystem. […]

Case Study: Furniture Row notes 10-15% increase in inbox placement.

Furniture Row Companies is one of the largest family-owned specialty home furnishings and bedding retailers. Operating more than 300+ stores across 30 states, Furniture Row is among America’s fastest growing furniture retailers. Jason Ullmer, email marketing manager at Furniture Row, was dealing with a low reputation at Gmail according to Google Postmaster Tools, despite using […]




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