DNSBL

Introduction

THREATINT DNSBL is a database of IP addresses from which we recommend not to accept email. IP Addresses listed are known to conduct malicious activities including but not limited to sending spam and scanning hosts. Mail server operators may query our list before deciding to accept email from your mail server.

Delisting
If you find the IP address of your mail server listed on our DNSBL, please follow these steps to get delisted.