Figure 1-1
Basic gateway deployment
Advantages
The basic gateway deployment takes advantage of Symantec Mail Security's
proximity to the Internet.
■
Because spam emanates from the outside world, the gateway is the logical and
effective place to deploy Symantec Mail Security.
■
When you deploy the system closer to the gateway, you can minimize mail
processing and storage requirements as well as network bandwidth via Email
Firewall filtering.
Considerations
Administrators considering the basic gateway deployment should take into account
the following factors:
■
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.
Multi-tier gateway deployment
Note:
This model may be implemented with one or more Scanner hosts.
Figure 1-2
shows Symantec Mail Security in a multi-tier gateway deployment,
with multiple Scanners in the DMZ and a Control Center behind a second firewall.
15
Planning your deployment
Deployment models