It looks like tls.ssl-priorities is not obeyed, at least in imap4d. I think copy_conf needs to copy this in addition to the certificate, key, and ca file names.
Also, if this assumption is not supplied, I think it would be better to use the gnutls default priorities instead of explicitly passing NORMAL, as it does now. Then if the system has changed the defaults, e.g., in /etc/gnutls/config, they would take effect. It would also be nice for the documentation to give a link to the format of this option, for example to https://gnutls.org/manual/html_node/Priority-Strings.html Thanks. Ken
