I adjust the first time the post server. Has created the virtual post domain, to users has created accounts, has established a giraffe. Outcoming mail leaves, and entering isn't present. In "Queue Management" entering messages hang with the status "connect to 127.0.0.1[127.0.0.1]:2003: Connection refused"
2003 is a port? Who can listen on it? Any filters like it is not established. Google hasn't helped.