Feature Request for DLP

Hi Everyone, 

Is this the platform to submit feature request regarding Microsoft Email DLP? I have this specific use case:

Ability to use a linked list (csv or excel) to provide domain exceptions for the sender or recipient domains. We have a list of 'approved/safe' domains to send externally shared emails to and instead of adding the list of domains to every DLP rule as an exception, I would like to link the dlp rule to a list and modify the list as necessary.  

If this is something that can already be done then please let me know. As of right now I can see the option to add recipient domain exception, but does not seem ideal if list of domains is lengthy. 

Thanks all!