@Gertjan
Before using pfSense I used CentOS (iptables and squid) for yearssss.. But proxy is pain, no more that for me.. lol.
Im thinking to change the local host file of that machine. The user of that machine, barely knows how to send a email, so i think this should work. I was trying doing this on firewall, to learn if i need this in the future for more machines on my lan.
I can change the host file OR the unbound view method.