|Administering Jive for SharePoint|
If you do not want Jive to connect to a specific site collection, you can place a property on that site collection that Jive will see and not allow a connection.
If you are a SharePoint Admin and you want to prevent Jive from connecting to a site collection, you need to place the Jive-SiteCollectionMarkedAsForbidden property on that site collection. The Jive-SiteCollectionMarkedAsForbidden property must exist on the rootweb of the site collection. You can set the property to any value for Jive to detect it and disallow connections to that site collection.