Upgrade for Live Support

All of our paid plans come with access to our highly experienced technical support team.

  • Contact us via Email, Phone, or Ticket
  • Detailed Explanation of Your Lookup Results
  • Guidance to Help Resolve Your Problems
  • RFC Compliance Best Practices
  • Blacklist Delisting Support

Let our experts help you resolve your blacklist issue!

Get Blacklist Support


What you see when your domain has this problem
Added to Konstant Details area Ignore

More Information About Konstant

Konstant is a Norweigan (Scandinavia) blacklist that lists known spammers who hit their honeypot spamtraps and through user submissions. Listings are manually moderated to prevent false positives with a threshold of moderate to high levels of complaints/spamtrap hits to trigger a listing. 

More information about Konstant can be found at their website: https://bl.konstant.no/