config_directory = . db = memcache foo_domain = bar header_checks = ldap:hh hh_domain = whatever yy = aap zz_domain = whatever ./postconf: warning: ./main.cf: unused parameter: zz=$yy ./postconf: warning: ./main.cf: unused parameter: aa_domain=whatever ./postconf: warning: ./main.cf: unused parameter: xx=proxy:ldap:foo