Emails in 3D and Self-Destructing
September 9th, 2007 -
2 Email services that you will really find very unique and fascinating besides quite useful.
3D Mailbox is kick-ass amazing email client. after using the free version the temptation to upgrade is hard to resist 
Big String is another email serivice that very compelling and really works.
Besides its main attraction of sending self-destructing emails,you can recall and edit even the ones that already sent and opened. Incidentally, the company is publicly listed with stock quote as BSGC.OB
Main features :
Self-Destructing
Recallable/erasable email
Non-Forwardable/IP Locking
Non-Printable/savable emails
Advanced Email Tracking
Masquerading