How to update certificate store?

I am unable to find a way to update the certificate store. I do not find Google or gmail certificates installed. Many others exist.

The email application reports it wished to make nice with this, but I find nothing like that is installed.

Server certificate:
Issuer Organization: Google Trust Services
Issuer CommonName: GTS CA 1O1
Subject CommonName: imap.gmail.com
Subject Alternative Name: imap.gmail.com

Yast gives me no clues.

I do not really understand the question. “Google Trust Services” certificate is signed by “GlobalSign Root CA - R2” which is installed as trusted root certificate on Leap 15.1. You need to describe your issue you are trying to solve, not your conclusions how to solve this issue.

Sorry for lack of clarity. Regardless, you provided the answer. Once I entered the correct path, I had to do c_rehash and things are working quite well now.

Thanks for your assistance.