I did that for years, and probably need to do some digging into the "catchall" mailbox they all dump into. I've had a few start receiving spam, which is how I k

I did that for years, and probably need to do some digging into the "catchall" mailbox they all dump into. I've had a few start receiving spam, which is how I knew when those companies had had some sort of data breach (looking at you, United Airlines, happened at least twice!) even if it was only via a third party marketing firm or the like.