Ive been getting these warnings in Mail-Log for a whiel and they dont stop, it comes tons of them every day. And its always different ip adresses and hosts. example: adsl-dynamic-pool-xxx.hcm.fpt.vn Static-19.183.96.14.tataidc.co.in mdmarket2.com 189-110-51-35.dsl.telesp.net.br Is there any way for me to stop this? I dont know whats wrong? Code: Sep 6 14:13:24 230302 postfix/smtpd[32125]: warning: 222.253.5.103: address not listed for hostname localhost Sep 6 14:16:22 230302 postfix/smtpd[32125]: warning: 122.168.113.21: hostname ABTS-MP-dynamic-021.113.168.122.airtelbroadband.in verification failed: Name or service not known Sep 6 15:10:43 230302 postfix/smtpd[30451]: warning: 78.187.177.230: address not listed for hostname 230.177.187.78.static.turktelekom.com.tr Sep 6 15:34:55 230302 postfix/smtpd[9673]: warning: 82.96.56.25: address not listed for hostname relay2-cust.srv.q.p80.net Sep 6 15:56:21 230302 postfix/smtp[20242]: warning: no MX host for emailrambler.co.tv has a valid address record Sep 6 16:03:07 230302 postfix/smtp[23981]: warning: no MX host for emailrambler.co.tv has a valid address record Sep 6 16:05:11 230302 postfix/smtpd[24378]: warning: 122.167.171.13: hostname ABTS-KK-Dynamic-013.171.167.122.airtelbroadband.in verification failed: Name or service not known Sep 6 16:13:05 230302 postfix/smtp[28447]: warning: no MX host for emailrambler.co.tv has a valid address record Sep 6 16:33:05 230302 postfix/smtp[6079]: warning: no MX host for emailrambler.co.tv has a valid address record Sep 6 17:13:26 230302 postfix/smtp[28049]: warning: no MX host for emailrambler.co.tv has a valid address record Sep 6 17:15:34 230302 postfix/smtpd[28273]: warning: 187.15.93.87: hostname 18715093087.user.veloxzone.com.br verification failed: Name or service not known
Ok, then these warnings are from the postfix dns name verification. Thats a useful feature to protect your server. So there is nothing wrong and I recommend to leave it as it is.
