1./postconf: warning: ./main.cf: undefined parameter: z 2./postconf: warning: ./main.cf: undefined parameter: z 3bar = y-value 4baz = 5config_directory = . 6t1 = Postfix 2.11 compatible 7x = x-value 8y = y-value 9./postconf: warning: ./main.cf: unused parameter: t2=$t1 10./postconf: warning: ./main.cf: unused parameter: foo=$bar$baz 11