After setting up Exchange 2007 Edge and Hub, you can verify their configuration via get-TransportServer.
On Edge and Hub, two anti-spam settings are important. You can use "get-TransportServer | fl name, anti*" to show the status of anti-spam related properties.
Assuming that you have 1 Edge and 1 Hub with antispam enabled only on Edge, you will see the following results.
On Edge machineName : EdgeMachineAntispamAgentsEnabled : TrueAntispamUpdatesEnabled : True
On Hub machineName : EdgeMachineAntispamAgentsEnabled : FalseAntispamUpdatesEnabled : FalseName : HubMachineAntispamAgentsEnabled : FalseAntispamUpdatesEnabled : False
When get-TransportServer is issued on Edge, antispam status is reported correctly.
When get-TransportServer is issued on Hub, both Edge and Hub status are reported. However, antispam status of Edge is reported incorrectly.
This takes place because it is represented as a boolean value. It can either be true or false. "Unknown" is a better value.