Mail indicator outside (discrete)

Does anyone have a good idea on a mount with a RGB device outside the door (waterproof) so that i can show perhaps red/green colors when the mail is there. I don’t want to turn on say the driveway lights since the mailmen will notice the activation at some point and that is not my intention.

Some thoughts, ideas would be nice! :blush:

Idea:
image

Then i can do more then just “show a light” only to find one like that with a api/wifi and even supported by HA might be a venture too :smile: since the garage top is wood, i could chip away some and put this in and place some glass in front of it to make it water proof?