"Gustavo Zambon Rozatti" <[EMAIL PROTECTED]> wrote:

>        I have more than 500 users in a qmail server, wich are
>        conected to Internet and to our Intranet, but not all of them
>        can have Internet access. So how can I prevent some users
>        from sending and receveing any mail to/from any host other
>        then localhost?

It's not easy. To do it right, you'd have to run all your mail through 
a general filter (see qmail.faqts.com or possibly modify a spam
filter).

-Dave

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