Hi there .I Dont want to take your time . But my problem Is getting on my nerve. the problem is that these days my clients cannot view their Hotmail and Gmail ,Mail Boxes on the other hand I have another Internet Flow which is provided by NAT. And surprisingly The Nat Clients Do not Face this problem , However at the moment that I switch on ISA Instead of Nat . Everything would get worse Please Help me out to sort out my problem I hope to hear from u soon thanks alot in advance