string $admin_email, WP_User_Request $request )
Filters the recipient of the data request confirmation notification.
In a Multisite environment, this will default to the email address of the network admin because, by default, single site admins do not have the capabilities required to process requests. Some networks may wish to delegate those capabilities to a single-site admin, or a dedicated person responsible for managing privacy requests.
(string) The email address of the notification recipient.
(WP_User_Request) The request that is initiating the notification.