I have been a happy user of Eudora mail for my home email for years. It has always been an easy program to use and their recent addition of a pretty good junk filter has made it a e-mail client worth mentioning.
I have recently acquired an X509 personal certificate for signing and encrypting mail and for authenticating myself with official Danish sites. So today I sat down thinking that it would be cool if I could sign my mails using this certificate. The system that is used to sign MIME based mail is called S/MIME (short for secure MIME), and to my utter surprise Eudora lacks any kind of support for using this.
A little googling revealed that several plug-ins had existed for this, but they are all discontinued.
I guess it is time for me to find a different email client if I want to digitally sign my messages.