Outbound SMTP connection

[Dumb Kid]

Hi all,

I have a ES v3 pre-insatlled on a DELL server.  Somehow, I cannot create any 
outbound smtp connections.  This is what happen:

[dumbkid at dsvr-1 t]$ telnet mx1.mail.yahoo.com smtp
Trying 67.28.113.10...


It just hangs.  It does not matter which mail server I tried, same result.  
I even tried disable the iptables "service iptables  stop".  Same thing.   
So, any emails supposed to forward outside of the company to @yahoo.com are 
all stucked in the mailq.

I am wondering what could be preventing me from creating outbound smtp 
connection?  This is a fresh install.

Thanks in advance.

Tom