qmail question

[Anurag Jalan <a_jalan vsnl com>]

Hi all,

I'm using qmail on my RH 6.2 server as well as on my personal workstation
. I use a fictitious domain adventus.cxm on my Lan , and use my ISP's
email accounts ( We are on ISDN dialup )

In my /var/qmail/control/virtualdomains I have an entry 
vsnl.com:alias-vsnl and,

in /var/qmail/alias/.qmail-vsnl-a_jalan , there is a single line :
&anurag

This setup works great except when i have to send an email to some other
vsnl.com address eg joe vsnl com , then this mail bounces back to me .
How can I force qmail to , send all emails to the vsnl.com domain , EXCEPT
a_jalan vsnl com ( or any other for users on my Lan ) to the ISPs SMTP
server ?

Regards

Anurag