Re: Exchange 2003 only on localhost

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On Tue, 29 Nov 2005 14:58:15 +0500, "Smith" <msn@xxxxxxxxx> wrote:

>HI all
>
>i am running on local LAN with 150 computers. There are total 3 servers with
>isa and exchange. i am using exchange server 2003.
>
>I want to know that how can i enable exchange 2003 for local users. i mean
>the 150 local users can send email to each other but they cant send email to
>outside email like hotmail or yahoo.
>
>PLZ reply quick
>

Yes you can.
If the servers and users are all on the same network then you could do
something like not give the server a default gateway, that would stop
mail going out.

Better would be to create an RG and SMTP connector. Use the address
space * and deny everyone from sending though it. That will result in
a message being sent back to the user saying they can't send to the
intended recipient.

Also make sure that the ISA does not accept SMTP (tcp 25) traffic from
within the network, that also prevents mail going out.
.



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