Description: What are the requirements for enabling Anti-Spam on appliances, in regards to WAN configuration and supported functionality.
Asnwer: ? In order for Anti-Spam to function properly on appliances, the WAN interface must be configured with a public IP address.
? Multiple WAN interfaces with multiple IP addresses are not supported. ? Multiple IP ranges on the same physical interface are not supported. ? Private IP addresses for WAN Interfaces are not supported. *
* If a NATing device is in front of the SonicWall WAN Interface, it must be configured in Transparent Mode, so that a Public IP address can be configured on the SonicWall.
See Also: UTM Anti-spam: How to activate and configure Anti-Spam (CASS 2.0) feature in SonicWall appliances (SW8622) https://www.sonicwall.com/en-us/support/knowledge-base/170503479694528