Why was this question not answered? I was wondering the same thing.
Steve Dec 30, 2015 at 9:58 am
What is the advantage of having software that encrypts an email message but does not require a password or key to unencrypt it at destination? If the email is intercepted – the possibility (or probability) of which is presumably the reason one would use encryption in the first place – what is to prevent the ‘interceptor’ from reading the encrypted content?