4-Step Computer Security Upgrade
Learn to encrypt your files, secure your computer when using public Wi-Fi, enable two-factor authentication, and use good passwords.
Bob is 100% right, and he’s already done some tutorials on how to use various email encryption tools. His latest, on how to use Virtru, covers email encryption in Outlook 2010 and 2013, Gmail, Yahoo! Mail, Mac Mail, iPhone, and Android (and probably more).
For Google Apps and Android users, Jeff Taylor did a Virtru tutorial at The Droid Lawyer last September.