Thanks for the information. I set this up and tested it this morning with about 12 domains, seemed to work fine. I then created a comma separated list of the complete whitelist (about 70 items) that I was attempting to use. Copied that into Allowed Senders List in ESET Configuration Editor. The mail servers checked in and grabbed the new list, but then immediately started giving errors about web protection and other things which was odd. I went back to my policy and found that EVERY single setting for every single product was now marked to be sent to the client and it sent the default settings to both my mail servers. Luckily, I made a backup before the changes so I figured no problem, I'll unmark everything and import from my backup. It appears my current EMSX policy is now corrupted as every time I import from my backed up policy it marks EVERY single setting for EVERY single product. If I create a new policy and apply my backup xml file, it works fine and brings in all my settings correctly. However if I apply that same XML to my existing Policy it checks every single setting and marks it to deploy.