What? It's your opportunity to nerd out and lecture people on why they're doing email WRONG!!!
(only half joking)
I usually just say "I receive all email @mydomain.com. I make one-off emails so I can tell who sells my email address." Most "normies" get it.
I usually just say "I receive all email @mydomain.com. I make one-off emails so I can tell who sells my email address." Most "normies" get it.