flok writes: BitMessage allows you to send e-mails truly anonymous. It also hides from where you're sending, to what location you send your message to and the contents of the e-mail. It is like using PGP/GPG but without the hassle of distributing keys. The way it does all of this (technically) is copied from bitcoin. Remembering a BitMessage address might be a bit of a challenge though (e.g. BM-Gu86guT7aSL68SuMd7Uhkq9tYcAc7Hti).