I am looking for FedEx drop boxes.

Maps does not find them... but there are several in town according to the FedEx website.

1. How do I fix this problem?

2. How do I leave support for Apple Maps on the Feedback pages? There is no entry for Maps when I look on:

Apple - Support - Mac Apps - Contact Support

[DarkStarRed]

You should open Maps.app goto menu Maps>Report a Problem.
This opens a overlay page in Maps, so make sure your in the area
you are requesting help for.

Then choose from the drop down list
Problem with satellite image
Street or other label incorrect
Location is missing
My problem is not listed