Barbara M.: > Thanks. > > I put: > > smtp_host_lookup = native, dns > > In my idea this give higher priority to /etc/hosts
Postfix works as documented. See: http://www.postfix.org/postconf.5.html#smtp_host_lookup Then search for any text that promises that Postfix gives priority. If such text does not exist, then such behavior is not promised. Wietse