I've been researching email encryption recently, and have come across various sites, but I know I'm not even scratching the surface. But what I'm after is an easy to use email encryption software that even my grandmother could use... FireGPG, although now defunct, is an example of something far too complicated with key exchange etc. as well as instantcrypt key creation although very simplified. Hushmail and Xerobank offer email services as well but the keys are kept on their servers which I don't feel too secure about. Is there an encryption service out there with a transparent key exchange as well as reassurance that your encryption actually worked? A lot of the threads are very technical which is not the direction I'm trying to go with this one. Maybe a post about which encryption service you like and briefly something about how the key exchange works. Thanks all!