Relay is rejected from allowed hosts in tcp.smtp but localhost

Hi there,

I just installed qmail on a Debian Sarge server of my company!

I use tcpserver, as recommended, and of course tcp.smtp which is:

192.168.7.:allow,RELAYCLIENT=""
:allow

When I do a telnet on port 25 (from server) to localhost, qmail lets me
send email to any domain. But when I connect from another machine in
the subnet above mentioned, it answers correctly but when I give RCPT
TO command directed to domains from mine, it refuses...
Even worst... when from the same server I do a telnet giving command

telnet 192.168.7.2 (which is the eth0 interface of the same server)

it doesn't work.

What is the problem with this configuration.

Thank you.