I am looking for someone who can tell me what request_header_access is required to get Hotmail working with squid cache. I currently have no problem setting up squid cache, but when viewing Hotmail emails the following error is shown: "Please refresh your browser window. When you access your Windows Live Hotmail account from more than one computer, we ask you to sign in again to help keep your account private and secure." When I remove request_header_access All deny all, Hotmail works fine. So, obviously I am blocking a header_access that is required to allow Hotmail to work. Let me know what you will charge to tell me what I am missing. Thanks.