One popular method for encrypting email uses the Mozilla Thunderbird email client with the Enigmail plugin. The basic steps:
- Download and install the Thunderbird client: https://www.mozilla.org/en-US/thunderbird/
- Install GnuPG and the Enigmail plugin: http://www.enigmail.net/home/index.php
Once you've got everything set up, give us your PGP key (under "Settings" in your account) and import our key (found here).
If you’re a MacOS user, you might also try GPGMail, a new GPG plugin for Apple Mail: https://gpgtools.org/gpgmail/index.html