Self-Destructing-Email - http://www.self-destructing-email.com/
Lets you decide what happens to your email after sending.
BiKiKii Anonymous Remailer - http://bikikii-remailer.noneto.com/
A free service that allows individuals including crime victims, domestic violence victims, persons in recovery, and others, such as those living under oppressive regimes, to communicate confidentially in a manner that ensures their privacy under even the most adverse conditions.