Blocking email from certain countries on Windows 2003
Posted on 2008-06-23
I am using CA eTrust Secure Content Manager to filter spam coming in to our network. We notice that a lot of the spam is coming from Korea, Russia and China, and as we do not deal with anyone from these countries, we want to block all connections from these countries. Is there any way to do this on a Windows 2003 server? Either within Secure Content Manger (i.e Blocking public address ranges - which I can seem to find any databases of public IP address ranges for countries) or as a free SMTP relay application that performs a IP to Location check with option to block certain countries?