IS it possible, perhaps using the SDK to blacklist a customer from ordering on the website with snipcart

I was wondering if anyone had a solution for ‘blacklisting’ a customer and preventing them from ordering on the website. I thought perhaps this could be achieved by ‘blacklisting’ either the order email address or the company name or indeed the delivery address, so that any orders with any of the blacklisted data would NOT be processed (either with or without some sort of cart feedback explaining that the order could NOT be processed