Not really, but it can depend on the surface you are mounting them against. With a wall mounted mailbox you can open the lid and you'll typically find two screwholes at the top. Screws go through the holes and into your siding. If the siding is wood this isn't too tough if you drill pilot holes. However, brick or stucco can be more challenging and you'll probably have to get a contractor to do it or else take a trip to the hardware store to get some appropriate anchors and advice. Of course, using a level is a good idea to make sure it goes on straight.
Can I expose the wood mailboxes to the rain?
Glad you asked. The answer is no. Wood mailboxes need to be well protected from the elements. Covered porches work great. You also have to consider how much ultraviolet sun exposure they might get. Sun can cause the finish to age. We use a finish with lots of UV blockers in it which helps a lot, but it also helps to wax the surface every once in a while with a wax that contains UV blockers. We provide a brand recommendation with the post wood mailboxes.
We have "Clockwork Orange" type hoodlums bashing our mailbox with baseball bats. What do say about that?
Our copper-clad streetside mailboxes can be made with a baseball bat resistant chassis. If you have an interest in that give us a call. Or consider moving away from Detroit.