with v2.2.34 i can use: ssl_ca = </etc/ssl/ca-bundle.pem ssl_cert = </etc/ssl-imap.pem after upgrade to v2.3.X it doesn't work like before. it's working if i manual cat ca-bundle.pem and ssl-imap.pem into one file and using only: ssl_cert = </etc/ssl-imap.pem i thought ssl_ca is where to put the intermediate cert?