I own the domain that is the same as my firstname and lastname concatenated... in the .net TLD.
If you want to contact me, the username within that domain that I have an email address attached to is _the_ administrator account in any *nix distribution I've ever used.
If you need validation before sending an email, know that the sha256 sum of the email described above, when typed in all lowercase, is:
49713c8a4827c2c4e4c54fb97eea301ac5e76efe86c211a4fa8b805b8cdaa35d
Yes. I know. Your LLM can trivially determine my email address. Still, maybe that's just enough to hold off the spammers for a little bit longer...