Cannot establish SMTP connection

[infinite_root]

Hope you can help me. I had a successful install of Qmail-1.03 on my RH9 server
However, on the process of testing Qmail the follwing error appeared:

Dec 3 14:47:52 ns2 qmail: 1070434072.952875 starting delivery 2: msg 560017 to
remote neilse@domain.com
Dec 3 14:47:52 ns2 qmail: 1070434072.952923 status: local 0/10 remote 1/20
Dec 3 14:48:52 ns2 qmail: 1070434132.946922 delivery 2: deferral: Sorry,_I_wasn
't_able_to_establish_an_SMTP_connection._(#4.4.1)/
Dec 3 14:48:52 ns2 qmail: 1070434132.946974 status: local 0/10 remote 0/20
Dec 3 14:56:15 ns2 qmail: 1070434575.966042 starting delivery 3: msg 560019 to
remote neilse@domain.com
Dec 3 14:56:15 ns2 qmail: 1070434575.966091 status: local 0/10 remote 1/20
Dec 3 14:56:15 ns2 qmail: 1070434575.968514 delivery 3: deferral: Sorry,_I_wasn
't_able_to_establish_an_SMTP_connection._(#4.4.1)/
Dec 3 14:56:15 ns2 qmail: 1070434575.968569 status: local 0/10 remote 0/20

I tried manually tested my SMTP if connection was allowed and the it resulted like the follwing:

[root@webmail root]# telnet ns2.domain.com 25
Trying 192.168.0.2...
Connected to ns2.domain.com.
Escape character is '^]'.
220 ns2.domain.com ESMTP
EHLO
250-ns2.domain.com
250-AUTH LOGIN CRAM-MD5 PLAIN
250-AUTH=LOGIN CRAM-MD5 PLAIN
250-PIPELINING
250 8BITMIME

I tried sending mail using telnet however viewing the logs had the same log output as above.
I use giptables for my firewall and SMTP have all the required permission to go-out the network.

How can I resolve the problem? And how can I add mail user in Qmail? How can I assing emails to individuals and group email?

[flw]

And how can I add mail user in Qmail?

The simplest way is to install "Webmin" then "Users and Groups", "Add local user" with the correct settings for access to thier home but not login or other dir's.

This can also be done via cmd line as well, I just prefer Webmin.

[infinite_root]

And how can I add mail user in Qmail?

The simplest way is to install "Webmin" then "Users and Groups", "Add local user" with the correct settings for access to thier home but not login or other dir's.

This can also be done via cmd line as well, I just prefer Webmin.

Thanks for the input!