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