Deploy and measure DMARC compliance
Analyze complaint rates with feedback loops
Record spam trap hits and phishing abuse
Monitor SPF and DKIM authentication
Test inbox placement and spam filters
Preview your campaign on 30+ mail clients
Validate and optimize your content
Know if you're blacklisted
Monitor inbox, spam, and missing mail
Analyze opens, read time, and engagement
Track devices, platforms, and mail clients
Review spam filter and ISP diagnostics
"250ok helps us quickly identify senders who may not be getting optimized delivery results. This way the team can focus on working with customers instead of reviewing piles of data."
Privacy Team Manager at Marketo
"Great group of people who really know the business inside and out. They have some of the most advanced and sophisticated features of anyone in the industry."
Senior Director of Deliverability, Maropost
"I love the flexibility of 250ok’s Blacklist Informant. Being able to adjust the frequency by IP or domain and adjust where the alerts are sent is exactly what we needed."
Director of Deliverability Operations, Delivra
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