Hi everybody. (sorry my inglish)
i have a qmail from 3 year ago, over centos 6. behind other centes with iptables and nat 10 days ago my isp change my public IP. >From that day, some mails get me this error... " Connected_to_184.108.40.206_but_connection_died._(#4.4.2)/ " i check DNS and i supose it is good.. where mus i lookfor problem ??????