Setting the default AIP classic label on a OneDrive or SharePoint Online: Document Library

Daniel Westerdale Hi. It is correct that the UL client by default doesn't put a Do Not Forward button in the toolbar, but this should pose no obstacle for this scenario since there are multiple ways to address this.

You can customize the ribbon to show an Encrypt button right by the Sensitivity button, and configure it to apply Do Not Forward in one click (this can be done via a GPO). 

Second, you can create a label that applies Do Not Forward. While this option is not shown yet in the UL management console in SCC, you can set it for a label in the AIP management console and if you have enabled Unified Labeling it will show up in the UL client. You can also configure it via SCC PowerShell if you don't want to use the AIP management console. 

Finally, you can use Unified Labeling while still having deployed the Classic client. Both can coexist if you enable Unified Labeling migration, and they will show the same labels since once you enable migration all labels are sourced from a common repository, even if they can be managed through two different consoles and can be viewed from the UL client, from the AIP client, and from all built-in clients (e.g. Mac, iOS, Android and, as discussed, in the SharePoint preview).

I know this last point can be confusing, but it is important to highlight that using Unified Labeling doesn't require moving *everything* to UL, you can continue using the classic client for as long as it meets your needs better, while using UL for what it supports best (e.g. SharePoint). 

HTH