Shipping Rules for Store Views and Customer Groups
Thanks to the Shipping Rules extension by Aitoc, you may have separate shipping rules for each Magento 2 store view and any selected group of customers.
For example, your premium users will value this feature most of all, because you will be able to propose them better shipping rates. Create rules for as many groups as you desire.
In order to avoid overfilling, the log of emails can be easily cleared.