Forefront TMG: Multiple URL Categories

When Forefront TMG queries MRS for a URL categorization, the result may include multiple categories (for e.g., a site can be categorized as both a Portal and Web Mail site). By default Forefront TMG uses the most significant category (otherwise known as the primary category) according to category precedence list. In Forefront TMG Update 1, […]

When Forefront TMG queries MRS for a URL categorization, the result may include multiple categories (for e.g., a site can be categorized as both a Portal and Web Mail site). By default Forefront TMG uses the most significant category (otherwise known as the primary category) according to category precedence list. In Forefront TMG Update 1, Microsoft've added the ability to configure Forefront TMG to use non-primary categories as well. This ability applies to following elements that utilize URL categories: · Destination list (the To: tab) in access rules (per rule) · Destination Exceptions in malware inspection (per array) · Destination Exceptions in HTTPS outbound inspection (per array).

[Source]