Email should be smart, like me!

Sometimes when I send email, I expect a bloody response.  OK, most of the time, I expect a bloody response.  But sometimes, I care if I don't get a response.

When you send an email, you should be able to tell your email you expect a response.  And when you expect it by.  If you don't receive a response by then, your email should send you an email telling you you didn't receive a response.  Hell, you should be able to auto-send a "What up yo?" email to the person reiterating that you need a response from them!