As it happens, somewhat surprisingly, he did use my name. That, or rather, 'Hey Miffy' were the only words present in his email. Underneath were three dots which I know only too well means a forwarded email.
I agree with what you've said about prostitution in the US, so I do tend to give them a little dispensation. However that said, I find those who are serious about seeing me use the contact form on my website, having devoured my website. The guy I mention in my OP contacted me directly from the ad, he didn't even bother looking at my website which was a huge red flag as my ad clearly states all new clients must contact me via my website. I guess listing my email is a good way of weeding out those who can't follow instructions. And that for me is what it is all about - someone following my processes.
I did give him the option of making contact via the form, however, I was met with the following response:
I’m a normal guy. I was an athlete now I’m in the corporate world. I still stay in great shape physically. I love women and I respect them immensely. That’s my story.
So, what have I done? Well, I told him Tinder might be a better option. As for my email, it is now no longer listed anywhere online, including my site. Contact can only be made through a form. Tbh, this is probably for the best although it means that I may be missing out on more men wanting to send my their pictures. This is a cross I shall have to bear!