Updated Hosted Email Security IP Addresses

First Published:01/27/2021 Last Updated:08/16/2024

SonicWall will be updating IP addresses for the Hosted Email Security (HES) platform in North America and in Europe 

Network administrators will need to update access rules to allow for the following HES subnets:

North America 

  • 173.240.210.0/24
  • 173.240.213.0/24
  • 173.240.214.0/24
  • 204.212.170.0/24

Europe

  • 173.240.221.0/24

IP Address used for Connection Test 

  • 173.240.221.21

The subnets can also be found in the HES FAQ KB article and firewall settings.

NOTE:  When updating the firewall make sure to disable and enable both NAT and Access rules so it will take affect.