It sounds to me like you can just use the smarthost
option...

>-----Original Message-----
>Greetings,
>
>We have only one exchange 2000 severs in integrated in AD
>in our company. All the external incoming emails are goes
>to a firewall and then a spam filter server and then to
>exchange server. Now, we need to put additional filtering
>server between our exchange server and firewall to filter
>all out going emails to external domains. I have been
>having very difficult time to identify and change the
>Exchange configurations/settings that are responsible for
>directing out going emails to a new filtering server that
>is going to sit between firewall and Exchange.
>
>Any hint/help very appreciated,
>
>Thank you,
>Essi
>
>.
>

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