I've added a new "no email domain protection" ready-to-import DNS zone file that's in BIND format specially for Cloudflare users. You can download it from here and save time [1].

P.S. There are also files for other services too, feel free to checkout. Some CF employees are also among stargazers, feel free to star if you like it too :)

1: https://github.com/irazasyed/dns-zone-files/blob/master/file...