21
Planning your deployment
Deployment models
Considerations
■
Some organizations prefer to have secure gateways with no other services
running. In these environments, all other services run behind the first
gateway layer.
■
Some smaller organizations do not have dedicated gateway servers or a
gateway layer. Instead, they deploy gateway servers and internal mail
servers on the same computers.
■
Symantec Mail Security for SMTP cannot be installed on the server running
Exchange.
Multi-tier gateway deployment
Note:
This model may be implemented with one or more Scanner hosts.
The following figure shows Symantec Mail Security for SMTP in a multi-tier
gateway deployment, with multiple Scanners in the DMZ and a Control Center
behind a second firewall.
Figure 2-2
Multi-tier gateway deployment
Advantages
■
This configuration meets a common security audit requirement in that all
data stores are in the second tier, including the Control Center and Spam
Quarantine databases.
■
Inbound traffic may be load balanced across multiple scanners with this
model.
