According to its founders it is one of the most secure email services in terms of privacy. They say that even their system admins couldn't read their customers' messages. Also they claim to be an alternative to Gmail.com who, as we know, as a part of Google.com has a lot of privacy related issues - especially targeted advertising possible due to algorythms scanning emails' content.
Anyway, it is good to know that there is an alternative and secure email account in case you need to send some "very important message"
If interested take a look here: http://lavabit.com/






