[qmailtoaster] I want block an user to don't order email outside of him domain

[Randraa]

 How  I can block an user for not ordering messages outside of my domain, just 
send emails internal.

example:
[EMAIL PROTECTED] can send for [EMAIL PROTECTED]

But One user just can send emails to:
[EMAIL PROTECTED] for others [EMAIL PROTECTED]

Thanks so much.


Randraa