ProSecure Web/Email Security Threat Management Appliance STM150 Reference Manual
Provisioning Threat Management Services 2-3
v1.1, March 2009
Server Group
In a server group deployment, one STM150 appliance is installed at the gateway and another in
front of the server group. This type of deployment helps split the network load and provides the
mail server with dedicated protection against malware, including email-borne viruses and spam.
Figure 2-2
Note: This configuration helps protect the mail server from internal as well as external
clients.