TexasCHLforum.com

Another issue may not be your domain, but other domains on the server that hosts your domain may be causing the issue.
One of the issues our spam server, Iron Port, and various other software do here is look for servers that promote spam and various other issues, and our server blocks them all by reputation.
Even if one of our customers is on their server.
When that happens, our IT department has to 'white list' their domain directly, so it can still block the server, but not the domain.

however, you cant expect, if this is the issue, that anyone on Mcaffee changes their settings.
But just a thought to why it may happen

Our company has a very strong A/V software package, that doesn't even show ad's on the outside borders of pages, and when I click certain things, it prevents those pages from opening, however Texas3006 opens up with no issues.
If your company gets locks of 'blocked' pages, then it may be realize you are CHL, but would they really know what Texas3006 is?