Outbound DNS from ISA 2004 Server being denied to ISP...Please help configure, customer down!
Posted on 2006-06-14
I have a customer who we have upgraded to SBS 2003 prem and ISA 2004. The server works fine upon reboot, inbound and outbound smtp flows but after about 20-30 minutes it dies. I am seeing outbound dns requests from the Exchange server (same box as ISA 2K4) being denied. I have a DNS oubound rule that looks correct and the server still does not pass the DNS requests to the ISP...Any thoughts?