Weatherproofing Outside Light
Today I replaced an old porch light, and noticed that there was no weatherproofing to keep water out -- nothing to keep water from seeping down the outside wall and perhaps into the electrical box. The new porch light was of the same type, and it didn't come with any weatherproofing either. So the outside plate of the new fixture is just flat against the outside brick surface, like the old one was.
Should this be caulked, or is there some other method for weatherproofing an outside light fixture?