please use these 'free' certificates which expire in June 2013
Trusted Source Email protection is also now free.
To use this, simply configure and enable the service and disable any port forwards for smtp ( tcp port 25 )
There is no way to connect the Web Filtering service to Active Directory right? You have to either use one set of policies for all users or create the users in the firewall?
Its a pretty good product and the price is right!