This is the blog with information about Deliverer Safelist, the sorted safelist with reduced send switching to make it user friendly. You can use your regular mailbox.
You can also download your own version and add your own addresses.
You can now pay for your Deliverer Safe List downloads using Bitcoin, Dogecoin, Litecoin,
Dashcoin, Fluttercoin, and Feathercoin. Many thanks to Coinpayments.net for the service. This is the link to the paypage.