There are some commonly used emails by most domain owners, like: info, webmaster, security, reports, sales, etc. Some people also set their email with a catch-all address, so if someone sends an email to “cat.in.tights”, they’ll get it too.
Ah. so that “[email protected]” is an email and this is not related to fediverse. Jus checked, there’s no such account here. No point in making an announcement about it here if its not related to fediverse and only gets sent to domain owners, imho. lol