I am deploying UC560 on my customer site. I alredy wrote about pppoe problems. now i have new isue with clients inside network when trying to get mail from their pop3 server and getting errors. I noticed that when i set firewall on low setting problem disaperes. I also noticed that issue is present with MS outlook 2010 (2007 works fine). does anybody have idea how to setup firewall to bypass pop3 traffic when setup on midium.