I reckon that after composing and sending an email, email programs should have a one-minute delay before it actually sends off your email to its recipients. I find that a lot of the time, I want to make one tiny edit to a message or forgot to say something—two seconds after I actually hit the Send button, of course.

A one-minute delay on all sent email isn’t going to kill anyone, and gives you a nice time frame to make that one last edit to your email before it goes out. (One of the nice things about working offline is that I after I compose an email, I can keep editing it until I rejoin the Intertubes, since my Outbox only gets processed when I go back online.)