It would be useful to add the following to the /lib/systemd/system/cyrus-imapd.service as it would allow systemd to issue a call for the master process to re-read its configuration (and process updated certificates after renewal, for example): ExecReload=/bin/kill -HUP $MAINPID See man master.8cyrus
Hello, Thank you for the suggestion. I've added ExecReload in rawhide's cyrus-imapd. You can override cyrus-imapd.service in stable releases for now.