I assume you do not get a call to become a member then?
I do get that offers mail does not require an account and that there are multiple ways of signing up. There is a chance I signed up during some game, where I was logged and completed tasks to earn badges. If so they could've known the connection. But it could also come from some other sign-up.
Anyway, in my AY+ profile, I have ticked yes to receiving "Finnair flight offers and best buy via e-mail". Is that a different mail list?
I just used the unsubscribe link in the offers mail, and my profile did not change, so I guess that are different things.
Then again, following the links for "Subscribe to newsletter" on the site (
https://www.finnair.com/se/se/flight...air-newsletter ) just points to "Update your profile" ...