i’d probably go with
robert F R at N K E L .com. as somebody with an email on my own domain, i will say it is a hassle, especially because my surname can be spelled one of two ways, and i have the less common spelling. i also chose
email@example.com, and having “email” as the first part really throws some people for a loop.
my partner and i bought a house where this is finally possible for us. we’ll be moved in by mid-march, and i’m stoked to have everything so close to us!