Receiving spam emails

My account is not subscribed to any mailing list. However my old email address that I previously used is still receiving spam from Plex. Clicking on the unsubscribe inside the email says I am not subscribed to any mailing lists. How do I get off the junk mail list?

Please send me the old email address per PM.

Sent you a PM

This email address has been deleted now.
Emails should cease within 48 hours.