I have a MacBook Pro and an Android phone. I signed into iCloud and Messages on mac with my AppleID. I then sent a message to my colleague, using Messages app, he responded. I then unchecked 'Enable iMessages in iCloud' and signed out of my Messages app. I'm not logged in anywhere but my friend can still send iMessages to my AppleID, even though I am not signed it anywhere else and iCloud for iMessages is not enabled. The messages of course are not delivered, but why is he able to send them at all and how to disable it completely?
Is the fact that my appleID is used for iMessages cached on his phone? on the server? How long will it wait before realizing iMessage is not an option?
I do not want to use iMessage on Mac at all, where will his messages end up? And how soon will he know the delivery failed?
I'm surprised to learn it's not immediate after signing out of the account.