What comes to mind, possibly the easiest way to do this would be to set up your mail client to send s/mime and then have filemaker send emails via the mail client. So, can it be done? I'm sure. All within FM without external application or plugin? probably not.
I was thinking of that, but from what I read, each time the user creates a email after the first encrypted email, the user has to check / uncheck the
the encryption box. I'm afraid that will lead to regular emails being sent out encrypted and ones we want encrypted sent out in clear text. I was hoping
that I could do this by SMTP and eliminate the user from the process.