I think for email encryption to be used two factors should be present: 1. Very cheap or free for contacts, and 2. Very easy to be used at least for contacts It

I think for email encryption to be used two factors should be present: 1. Very cheap or free for contacts, and 2. Very easy to be used at least for contacts It is next to impossible for Initiator to convince his/her contacts to use any encryption solution that put burden on them. I am not talking about the security because it should be paramount and by default but with upper features. I think it is possible and believe if enough users use email encryption the trend of cyber crime can be turned back.