Hello to all, I have ISPconfig (ubuntu+postfix)installed and configured. Its all looks gr8! I have only one problem and that is RDNS. When i send email I get mail back with error: host mail2.nlb.ba[18.104.22.168] said: 550 No RDNS entry for my.ip.address. (in reply to RCPT TO command) Anyone know what to do about this???