or download this
mail2-out - ntpd: sendto(192.168.4.10): Bad file descriptor
mail2-out - postfix/smtp: warning: valid_hostname: empty hostname
...
mail2-in - postfix/smtpd: warning: 84.9.96.201: address not listed for
+ hostname mail.intechcentre.com
mail2-in - postfix/smtpd: warning: 190.8.87.73: hostname din-190-8-87-
+73.manquehue.net verification failed: hostname nor servname provided,
+ or not known
mail2-in - postfix/smtpd: warning: 190.8.87.73: hostname din-190-8-87-
+73.manquehue.net verification failed: hostname nor servname provided,
+ or not known