I have managed to confuse myself with email
I have; two apple accounts, three email providers, five domains, multiple email addresses, email forwarding and email address aliasing across domains and providers, two ipads, one iPhone one desktop. Add to this mix; six users (family members) plus various iPhones, macbooks, ipads, desktops etc. Oh, and family sharing between my own apple accounts and between my and Dr Beardy's (Mrs) apple accounts.
I _think_ all my devices are logged on as the same person with the mail accounts set up accordingly BUT I'm getting imessages and text messages seemingly randomly on my devices. My outgoing emails are also confusing me, largely because, probably due to my sknflintness, my email providers don't support outgoing email aliasing on my accounts, so I have to change the 'from' address on replies to one that will work. <$deity knows what my correspondents think of my ever changing emails.
I'd go and sit in a corner and rock backwards and forwards if I didn't have to go and grapple with the monster that is GDPR!