There are parties, e.g. enterprises, that uses S/MIME certificates for e-mail encryption. To my understanding Thunderbird has support by default for S/MIME. But I have not found a way to obtain a ...
What's the proper way to install Enigmail (PGP Signing for Thunderbird)? I noticed that it's in the Ubuntu repositories - is that the proper way to install it, or should I install it from the page on ...