> > Sep 12 04:57:06 nudin1 postfix/smtp[29110]: connect to > > freenet.de[62.104.23.42]:25: Connection refused > > connection refused is a network problem, probably a firewall block. > Perhaps your ISP doesn't allow you to run a mail server?
Something is wrong with your DNS resolution. freenet.de[62.104.23.42] is not the correct MX for @freenet.de: # host -t mx freenet.de freenet.de mail is handled by 1 mx.freenet.de. # host mx.freenet.de mx.freenet.de has address 195.4.92.211 mx.freenet.de has address 195.4.92.9 mx.freenet.de has IPv6 address 2001:748:100:40::8:111 mx.freenet.de has IPv6 address 2001:748:100:40::8:110