It takes me only ~30 seconds per day to filter mail manually & toss 90%+ into the recycling. That's not a big problem needing solving. And, they don't explain

It takes me only ~30 seconds per day to filter mail manually & toss 90%+ into the recycling. That's not a big problem needing solving. And, they don't explain how they "pickup" securely. Do I need to be home? Then you've lost all time savings, as I have to answer the door to do the transaction with you. If I don't have to be home, then how can you get into my mailbox securely?