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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.
- HES FAQ KB article: HES FAQ
- Firewall rules for HES: Firewall rules for HES
- How to make sure you have sufficient resources set for on prem SMTP server: Sufficient allocated resources
NOTE: When updating the firewall make sure to disable and enable both NAT and Access rules so it will take affect.
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