You have the option enabled to 'Do a forward DNS lookup to rate URLs'. This means that the IP address of the host is rated when a domain is uncategorized. The solution is to submit a categorization request to trustedsource to have the domain categorized (the ip will no longer be rated) or whitelist the site from category actions on your Web Gateway. See https://community.mcafee.com/docs/DOC-4825
Thanks. That fixed it.