We have the largest USPS box with the bottom cut out so mail drops into the chamber below. When home a sheet metal plate is installed in the mail box. We pay $10 a week for someone to come empty the mail and check the house including turning on and running the water inside to toilets etc. House and irrigation water both have ball valves so very easy to use.
We also plan ahead so that no packages are delivered when we're gone.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland
Bob