Its likely an automated/keyword filter, or a list they bought from someone else. Turning off all filtering invites phishing, spyware, malware into your network

Its likely an automated/keyword filter, or a list they bought from someone else. Turning off all filtering invites phishing, spyware, malware into your network, so thats not a great solution. My bet is that 9 times out of 10, if you email IT and they check it out, they can get it whitelisted.