loghostをsyslogサーバに変更 127.0.0.1 localhost 192.168.1.128 rmail.send.test rmail 192.168.1.4 equium equium.send.test loghost
::1 localhost 127.0.0.1 localhost 192.168.1.128 rmail 192.168.1.4 equium loghost
mail.debug ifdef(`LOGHOST', /var/log/syslog, @loghost)