NC4: Which IP Addresses Should Be Permit Listed by Your IT Department for NC4?


Which IP addresses should be permit listed by your IT Department for NC4?


  • For NC4 Risk Center, permit the following NC4 domains: and
  • For your email servers to ensure you receive risk events, permit the following NC4 domains or IP addresses. It is suggested that you permit by domain, however, you can use the IP address alternatively: or IP or IP
  • For delivery of the NC4 Cap feed, permit the following IP addresses: and
  • For NC4 E Team, permit the following domain and IP addresses: and
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