After upgrading to the High Sierra, I cannot import my COMODO email signing certificate (*.p7s) to Keychain and I am getting:
An error occurred. Unable to import the certificate.
Error: -26276
I have no idea on what that -26276 is and it is used to work in previous OS X, any ideas?
MacBook Pro with Retina display, iOS 11.0.3, null
This blog post suggests that this error can be ignored:
http://techblog.danielpellarini.com/security/using-a-comodo-free-email-cert-in-m acos-sierra/
However, when I follow the instructions on High Sierra with Safari, I get a certificate that doesn't have an associated private key. This is what the Pellarini describes as what happens when using other browsers, e.g. FireFox. Don't understand. I'm going to try it on Sierra.
To add to the confusion, I just tried this again on High Sierra for a different email address. It worked.
No idea....
This worked when I tried it on Sierra.
Cannot import email certificate
