If you have ever wanted to send anyone a self destructing micro-cassette or letter, this service is for you. BigString lets you send emails with a set lifespan which can still be erased or amended after hitting the targets inbox, you can even lock them from being saved, printed, or forwarded. I don’t know about you guys but after flipping through the site I’ve imagined at least a dozen Mission Impossible scenarios. Did I mention you can send videos?
The most basic service is free but for an extra $30 a year, you get unlimited storage and the ability to access your account via any POP3 enabled email client.