If you have two policies that overlap, that is two different sets of rules apply to some of the same users, the policy with the higher priority setting in the policy list will take precedence.

For example, if you have one scanning policy ABC that includes a rule to block all compressed files, and this policy applies to the Sales and Marketing department. Then you create another policy called XYZ for senior marketing staff. In the XYZ policy, you want to permit compressed file downloads.

If ABC has a priority of 1 and XYZ has a priority of 2, then ABC policy will take precedence—no one in Sales and Marketing will be able to download compressed files.

However, if you change it so that XYZ has a priority of 1 and ABC a priority of 2, then the special policy will take effect—the senior Marketing staff will be able to download compressed files.