certificates trust

In KeyChain you can manually distrust each certificate but for many certificates this means lots of clicking. The easiest would be to change the "System Defaults" trust level so it never trusts a certificate by default. Question is how to do that or where to find that? Alternatively an automated...

When I start a new Mac OS system, from skratch, inside the keychain application, I noticed there are 3 certificates that are not trusted or not verified yet. I know I can double click eachone of them and make them trusted for the entire system. But my question is what are those certificates...

Hey guys! i'm having a bit of a problem with my Keychain Access. I'm running macOS High Sierra (10.13.2). I need to mark some of my certificates I keep in the Login Keychain as "Trusted". I open the keychain, I log in with my administrator password, I try to double click on (any) certificate...

Hello - I've been having a problem with outgoing mail for a couple of days - it started with my iPhone when I needed to reset network settings (because my Personal Hotspot was not working). After that is started complaining that it "Cannot Verify Server Identity" when it tries to send outgoing...