Video: How to sign/encrypt email using OS X Mail and a secure certificate authority CA


A video walking through how to set up secure certifications using a Certificate Authority (CA). This allows you to sign email for authentication and also encrypt email to someone using their public key.

This example is using Mac OS X Mail app, but the setup is similar for other applications. Also for this example I'm using the free Comodo service for the CA, but a number of other options are available.

Once configured, the exported certificate can then be installed on other computers/devices.