I spent 2 days banging my head against the wall trying to get PGP to work with my MAC. It can be done and there are a lot of people here that have gotten it to work properly. Yes, you have to do everything in the mail client. encrypt, decrypt, you don't have to actually send the endcrypted/decrypted copy though. I found it easier to get virtual box going and windows. It was much easier. took me about an hour to get everything set up. There are how to's to help you here. they are somewhere in the threads.. Good luck..