I IMMEDIATELY delete-before-reading any Email from any address I don't recognize; in other words, no one's first contact with me is going to be by Email.
I trash anything I receive in the mail if I don't recognize the sender, which means I throw 95 out of 100 items that show up in my mailbox into the trash without opening them.
I'm hard to scam. I guess I'm also hard to get hold of randomly, but that's OK - I'm perfectly happy to communicate only with people that I either know through a forum, or who are referred to me by someone I know, or who I meet in person ...
Makes life much simpler, much less of a headache, and much less risky!