Has your Daughter ever told her Dad that she would like to spend more time with him? Maybe you should encourage her to take the opportunity to tell him how she feels. Somehow the same words coming from them make more of an impact. Besides that, he can't twist it and say that those are your words.
I think the e-mail telling him when she will arrive is a good idea, Short and sweet. Don't feel guilty because you need some time to yourself. We all do, and when we get it it only makes us a better parent.
