I have setup Windows Small Business Server 2003 R2 using two NICs. One NIC is connected to a SonicWall TZ170 and the other NIC is connected to the LAN. Everything is configured properly to allow the users access to the LAN and the Internet. The issue is that I am having a difficult time getting the TZ170 configured properly to allow e-mail traffic to and from the Exchange server. I used the Wizard on the TZ170 to setup access for port 25 to go to the internal LAN address of the SBS.
Any ideas as to where I am going wrong or has someone else setup SBS 2003 using two NICs behind a SonicWall TZ170?