Anyone know of good info to make sure your Exchange 5.5 server isnt acting as a virus "relay" to the rest of the world? Any info would be helpfull.
There are several levels to protect and control access to your server and network.
One specific action you should do:
Exchange Administrator
Find the IMS object under "Connections"
Properties
Routing
You should block rerouting totaly, OR, you should limit relaying only to hosts in your local network by ip address.
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