I have a very early gmail address. A very common first name plus two letters. It is almost unusable by now. Invoices, subscriptions, important documents about some persons real estate dealings. They all end up in my inbox.

I have around 20 or 30 google accounts attached where i am the backup email address. Those people forget their passwords or stop using their accounts and i get email notifications about that. No confirmation from my side necessary.

I set up a new address that is less likely to end up with this problem. But migrating away from the old one is not easy…