This is highly debated but I believe this needs more light shined on it because there are many mixed answers out there.
Do some reading about how these "base shields" work in EVE, DU's implementation will probably be similar.
In EVE, a "scout" with a popgun cannot put a base shield into reinforced mode. It requires a battle fleet to do that. If that wasn't the case, all the base shields in EVE would probably be in reinforced mode permanently, lol
So you won't be getting spammed with warning emails, because the effort required to drop that base shield is so great that nobody is going to do it by themselves for the "lulz".