Artifex.org root certificate

If you connect often to webmail or use a mail client with the Artifex, you should install the Artifex root SSL certificate so that you can avoid avoid “unrecognized SSL certificate” warnings, and to reduce the risk of a “man-in-the-middle” attack.

The URL for the certificate is:

Each OS has its own way for installing it, but chances are you can just download it and double click on it to install it.