I can write that up for ya real quick lol. BRB. Various blogs talk about all types of things and most "Etiquette" pages talk about this on personal websites, so he may just want to search around. An auto response is also a good idea to list a few things, you will NOT respond to.
Things like "Hey, baby R U available 2 nite?" Delete!
"Can we do x, y, and z?" Delete!
"How much for an hour," when her rates page is like right there. Delete!
Basically suggesting anything sexual over email, or talking about rates for sexual services, writing like you have not passed 3rd grade even in a public school, or one liners with no screening information.
It is customary and common sense to provide some indication in the very first email that you are willing to provide the information she requires, or an alternate form.
Damn...I sure hope that's what you are asking, because I am going to feel like a big dumb ass, if not bwahahhaah.