RE: isa

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Hello Farkas,
What you're asking for can be done easily. No, PAT is not supported but NAT
using Server Publishing will do what you want.

- Disable the existing inbound Packet Filter for port 25.
- Configure an SMTP Server Publishing rule forwarding inbound SMTP to your
applicance.
- Configure your Exchange SMTP Server to listen on a LAN address.
- Configure your appliance to forward filtered messages to your Exchange on
that LAN address.

HTH,
Tony


"Farkas" wrote:

> I have an Windows SBS Server running ISA 2000, can i port forward SMTP port
> 25 to a non-Windows device such as an SMTP/Spam/Anitvirus Appliance that will
> scan and forward back to our Exchange Server. If so i was looking for some
> assistance on setting the required packet filers and other publishing
> requirements. I have found supporting documents saying that Port Address
> Translation, which i believe i am trying to accomplish is supported in ISA
> 2004 and not sure if i can make this work with the version of ISA and a
> non-windows device that i have.
>
> Thanks in advance,
>
.

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