Help: SMTP problem

[Jinfeng Liu]

I just installed qmail1.03-i386.rpm on my RedHat6.0(kernel 2.2.9)
It seems SMTP is not working properly. When I try to send e-mail by pine.
It complained "SMTP greeting failure: 421 SMTP connection went away".

IF I try to telnet localhost 25, here is the response
telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.

Anyone knows what is going wrong and how to fix it?

Jinfeng