ca-certificates Mac OS X

Question

I need to install offlineimap and mu4e on emacs. Problem is configuration. When I run offlineimap I get :

OfflineIMAP 6.5.5
Licensed under the GNU GPL v2+ (v         


        

Answer 1

For macOS 10.15.6 (which is currently the latest stable OS version until macOS 11 future release) I found that brew info openssl is the easiest and convenient way of how to find out where all CA certificates are located and how to add your custom CA .pem certificate.

Spoiler from the command's output

To add additional certificates, place .pem files in /usr/local/etc/openssl@1.1/certs

and run /usr/local/opt/openssl@1.1/bin/c_rehash