My RSVP deadline was Wednesday, and I'm still waiting for quite a few to be returned (about 30 at this point!).My FI will be following up with most of them, as most of them are "his" guests. However, I have a few on my side as well....a college friend, my cousins that my parents wanted me to invite, etc.Any tips? I want to include something along the lines of, "If I don't hear from you by XXX, I will assume that you will not be attending." Is that rude? I'm basically planning on something along the lines of "Dear X, I hope that you received the invitation that we sent. We're getting down to the wire (less than a month to go!) and I wanted to see if you were going to be able to make it. I totally understand if you can't, but I wanted to check since I'm due to give counts to the caterer shortly."Sound ok?