Unable to find and modify the "Built-in Policy - List Exchange Mailbox Stores" policy in the Active Roles Console
When working with Microsoft Exchange mailboxes, Active Roles might reference a "Built-in Policy - List Exchange Mailbox Stores" to handle Microsoft Exchange mailbox provisioning out-of-the-box. No such policy can be found in the Active Roles Console.
This is expected functionality.
Active Roles has some default behaviour that it flags as a "Built-in Policy" that is not exposed in a editable policy. This behaviour is one such default behaviour.
In order to change override the default behaviour, create a new Provisioning policy or modify an existing Provisioning policy with a "Exchange Mailbox Autoprovisioning" rule.