Hello Wietse Venema, a few minutes ago I got this warning again. Renaming the configuration files in /usr/lib64/postfix does not help to solve that issue.
r...@lunox ~ $ find / \( -name master.cf -o -name main.cf \) -print /etc/postfix/main.cf /etc/postfix/master.cf Do you have another idea? Best regards. Bernd Lommerzheim