This is a very bad idea which I have also done and am currently in the long process of undoing. I have >800 email addresses on my own domain. What happens if I

This is a very bad idea which I have also done and am currently in the long process of undoing. I have >800 email addresses on my own domain. What happens if I do not renew the domain name - either by accidentally missing the renewal date or in the extreme example, if I die? At that point anyone can register the domain and can receive (and send) email for all my accounts, very likely leading to the accounts being compromised. Even if I'm dead I still don't want my mortgage or bank accounts being hacked, I want them in the hands of my heirs. So yeah... very bad idea or at the very least, not worth the minor reduction in spam for the risk.