Hi Beth. I've been reading you posts as we share similar situations with QLC Husbands. Please ignore my advice if you dont think it fits, cause I'm no expert, just thought it might be helpful to have another point of view.
I say dont respond at all. Nothing. Dont acknowledge the email at all. That sends a pretty clear message that you dont want to know these little details about what he is doing. To me that seems better than making a point of it. Somewhere in the DB book it talks about how men respond better to actions than words. (It was an A-HA! moment for me when I read it, so I've hgihlighted it!) This is a generalisation, but as females we tend to want to talk eveything through, and communicate. But men respond best by actions and non-verbal communication. That's why I think you not responding is the best way to send your message that its not OK.
Of course I dont know your full situation. But it might be good to go back and look at what you are acutally trying to achieve, and see if the email will be likely to bring about that result. I kind of think it will leave H feeling like he cant contact you at all about anything.
Maybe he's not deliberately trying to hurt you - maybe he is just looking for some common ground to make a baby step back towards you. It just happens that this common ground is something that you feel sensitive about, and brings up old memories that are painful. (Of course you know best if this is the case or not). In my own experience I have worked out that my H is so overwhelmed by his own feelings at the moment, he really is oblivious to how his actions and words might make me feel (positive or negative).
I hope that helps - this whole thing just sucks so much. I am thinking of you.
