The executive director of one of my clients had asked me to update their spam filter for their local exchange server. After doing so, I added the copier to the list as well. Now, I admit I'm not totally dumb, but as this is my entry job to the IT world, I realized I did this without fully understanding why I did it. Now the director is asking me why their copier would need a spam filter. How do I answer her without sounding like a dumbass and having my foot in my mouth?