Most of the emails that we send and receive aren’t the sort that you have to worry about someone intercepting. It’s not like you’ll be upset if someone gets a copy of that email your crazy uncle forwarded you with all of the silly .gifs. However, there are some instances where you need to be absolutely certain that only the intended recipient gets to read the contents. For those times, you need to be encrypting your email. But how exactly does one go about doing this?
Over at MakeUseOf, there is a great guide on how to use VaultletMail to ensure that your emails are completely unreadable by third parties. You’ll be happy to know that it uses a 2048 bit RSA public key and 256 AES encryption. You’ll essentially just need to install the software on your computer, and have the recipient do the same. There are even tools that prevent the other person from forwarding, copying or even printing out the email. You can even set the email to “self-destruct” after a certain period of time. This certainly isn’t something you’d want to use for everyday messages, but if you’re dealing with highly secretive information, it might be worth looking into.