Another comment on this article actually shows this isn't true: Comodo offers free S/MIME certificates. (https://news.ycombinator.com/item?id=13635591)
I went ahead and just grabbed one for myself after learning this.
I went ahead and just grabbed one for myself after learning this.
Also, what happens when your certificate expires? Are you supposed to keep all expired certificates so you can still read older encrypted email? Does that even work?