Just wondering if anyone knows the answer to this question. I'm signed up for the USPS "Informed Delivery" service. If you're not aware, one of the things it does is it sends you an email every day with pictures of the mail that is supposed to be delivered to you each day. Usually, at least a couple of times a week, there will be a picture of a piece of mail that doesn't arrive. If I sign on to my "dashboard" on the USPS website, the pictures of each item are there, and there is a little box you can check that says, "I didn't receive the mailpiece". My question is, what does this do? I've never received any follow-up from USPS about this. No, "sorry, it'll be in tomorrow's mail," or any indication of what might happen or if I will ultimately get it. Many times it does show up, the next day or so, but occasionally, it never shows. So my question really is, does that little checkbox actually do anything or is it just to make me feel better?