So finally got my email certificates installed.
I have 2 emails set up and each has its own certificate. testing it out. I’m trying to email myself from one email address to the other. I can sign the emails but the lock button is greyed out. google hasn’t helped so far.
I got this to work with outlook. it sends encrypted and signed emails but can’t get it to work with apple mail.
I’m running Mac OS 10.14 and using Apple mail.