> 1. Store.exe still seems to have a memory leak. I found a patch for this problem, but it hasn't seemed to help. Over time it continue to gobble up more memory. Known Exchange "feature". It will use as much memory over time as it can, releasing memory as needed by other apps. > 2. Having a problem with my DNS settings. I was trying to set it up so that the internal card was configured as the DNS server which is then pointed out to a public DNS server through our ISP. Then using IPSec I blocked all incoming traffic except port 25 and 80 on the other card mapped to an external ip . This affected some clients because they were trying to access the server through the card that I blocked. Realizing this, I changed my DNS settings so that it would only listen on the card that I specified. The problem is that when I do that, DNS stops working completely. (i.e. it fails when I test) What am I missing here? How can I get my local client machines to access DNS through the specific card, still have DNS run, and be able to block the card mapped to the outside? Since you are using SBS 2000, are you using ISA or are you familiar with it? John Tolmachoff MCSE CSSA Engineer/Consultant eServices For You www.eservicesforyou.com