How do I stop receiving someone else' messages? The phone number on the machine's not mine. Signing in and out of Apple ID did not fix the problem.
My brand new MacBook Air is receiving my partner's iMessages instead of mine, and all messages I send, go as from him. (Which has been highly embarrasing).
I've already checked that my macine is linked to my Apple ID, which only has my phone numbers associated with it. I have already signed out, and signed back in.
It is a brand new machine. But I believe I entered his number instead of mine when initially setting up my MacBook, and can't figure out how to change the phone number associated with this machine.
His number is the only number which appears under: "You can be reached for messages at:" under Settings/Accounts.