I have this same concern, the problem is that support page is a dead end. It says add them to your contact list, but the linked page doesn't provide the full address. Only a partial to compare existing emails.
I found an old version of that page in the archives that did provide a few of them, which leads me to believe they don't want to advertise them at this time.
I have over a dozen potential addresses in my contacts, I know one of them works because I suddenly started receiving newsletters again.
But from my POV I don't know if I can even get other emails related to my account, and I don't know how to verify those addresses.
It seems to me any bad actors out there wouldn't have such an issue, they probably get more emails than anyone. Presumably.
21-Mar-2023 12:06:53