One thing that puzzles me about the latest tide of spam is how stupid many of the spam email titles are - those that pretend to be from random names e.g. Barry, Lea, Nigel, etc. but title the emails as if they are emails *to* those people (Read this Barry, Greetings Barry). Even if I was dumb enough to open spam emails, I'd just think "I'm not Barry - delete".
When are they going to give up on the current model of email as broken and move to something where servers have to confirm they are the source of the email?