When i am trying to restart my postfix and nagios for sending a mail automatically about the status the foollowing message appears.
Status:Deffered.Connections will not be accepted from x.x.x.x because the ip is in spamhaus list[yahoo.dns.net]
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It only takes a minute to sign up.Sign up to join this community
This is normal if you are using dynamic public IP. This is effort to block spamming used by ISP.
However if this is private IP then you need to contact the blacklist host site administrator to exclude you from the list or your ISP to help you out.
To check blacklist IP Blacklist Checker.