I have several groups set up in my database. Current Client, Inactive Client, 24 Hour Client, etc.... I have clients that are in two or three different groups depending on their membership status. I send out a newsletter every week or a specific email to a specific group. My question is.... how do I avoid sending a duplicate email to the client that is in a couple of different groups? Can you block it somehow? Not sure if that is the correct way to put it. Help!