Every since iOS 9 I have had issues with email certificates. I get the cert from StartSSL and Comodo but both have the same issue. Apple says they don't do help with 3rd party...... but it has to be the iOS. Here's the details
I export the certs to .p12 format - then email each one (both iCloud address; me and wife) and email them to our iPhones. Click on attachment, do install successfully on both devices. Setup iCloud->Mail->Advanced and turn of S/MIME with Sign and Encrypt set to ON.
So one of us sends a signed email to the other, clock the From name w/blue checkmark and View Certificate. Here's the problem.... when you click Install it does nothing. I think what happens is the old public key for the user that was installed before does not delete (in fact I don't know where to even find it). And its not smart enough to see that even with the same email address, the key has changed.
So any encryption with your newly installed cert cannot be decrypted b/c of this problem. Can anyone help with this?
