Thor From what i get. he's got two network behind one ISA. Now i am assuming that this (the second network) is a new one. Otherwise, they must have thier own firewall and internet connection somewhere or he must have something going on serving up a gateway/firewall functionality to that network. Even if that is the case, the easiest way is put a third nic in the ISA box and publish a mail relay server. ________________________________ From: Thor (Hammer of God) [mailto:thor@xxxxxxxxxxxxxxx] Sent: Mon 7/11/2005 1:28 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Two Internal Networks http://www.ISAserver.org Can you draw out the network? I'm confused on exactly how you've got the 2 separate nets going... You have 2 clients sharing one ISA server? t ----- Original Message ----- From: "Andrew English" <andrew@xxxxxxxxxxxxxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Sunday, November 06, 2005 5:55 PM Subject: [isalist] RE: Two Internal Networks http://www.ISAserver.org 3 NICs?? Why couldn't one use setup SMTP under IIS on ISA and have the Exchange rule push the SMTP over to the ISA box and out through either network? Andrew -----Original Message----- From: Steve Moffat [mailto:steve@xxxxxxxxxx] Sent: Saturday, November 05, 2005 11:12 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Two Internal Networks http://www.ISAserver.org 3 nics and windows rras -----Original Message----- From: Andrew English [mailto:andrew@xxxxxxxxxxxxxxxxxxxxxx] Sent: Saturday, November 05, 2005 12:04 PM To: ISA Mailing List Subject: [isalist] RE: Two Internal Networks http://www.ISAserver.org That's find but I have two networks with two different IPs. 192.168.x.x and 10.10.x.x so how do I redirect the SMTP if the machine sits on one network or the other? Andrew