I run a Windows 2003 server at home with Exchange 2003.
I have opened the following ports on the firewall 25, 80, 443, 1723 to allow smtp, Outlook Web Access, and a VPN.
I do not have an SSL certificate or any other type of encryption enabled.
To connect to OWA we require a strong password that is all. This in itself I understand is supposed to be insecure.
However, on the router there is a facility that allows MAC address filtering which means that only machines with a specific IP address can get past the router and on to the local network.
Does this mean that my domain is secure from potential intruders?