Disable Auto-Forward of messages outside of the company

I want to disable the ability for clients to configure automatic forwarding from their Outlook Client. I came across a few different articles outlining a method for Mail Hub Transport rules, Role Based Assignments and Remote Domain settings. I want to confirm if I implement the Remote Domain settings, what will impact be;

i.e. Set-RemoteDomain Default -AutoForwardEnabled $false

- External Out of Office Messages

- Outlook Rule Auto Forwarding

- Forwarding to contacts via Exchange Console

My desired result is to allow External Out-of-Office messages, Administrative Defined forwarding (via exchange Console) while blocking only Outlook rules from forwarding.

Thanks in advance.