OT but still about linkedin. I wonder if somebody could help me figure this out

I have a new email account on my own domain. For the sake of this discussion lets pretend my domain is MYDOMAIN.com, but keep in mind my actual domain isn't some words put together that a human could conceivably guess.

Just now I got two confirmation emails from linkedin. They read as usual:

    FIRSTNAME, your pin is XXXXXX. Please confirm your email address.

("FIRSTNAME" is not my first name, it's some other person's, presumably.)

I received these confirmation emails on NEVERUSED@MYDOMAIN.com where NEVERUSED is some string that I've never used before anywhere.

What is going on here?

▲ slyall 3 hours ago | parent [-]

Have you checked to make sure your domain wasn't previously owned by somebody else?

There are sites where you can lookup previous ownership such as https://whois-history.whoisxmlapi.com/

	▲	ekjhgkejhgk 3 hours ago \| parent [-]
		What are you suggesting? That someone owned the domain, lost it, and after losing it tries to create a linkedin account with it?