Hi, I have an ISA 2004 server and would like to deny access to any client on the network that is not using a proxy. Can someone advise on the procedure ?

Hi Jhaddad, This forum is for Exchange issues. For questions about ISA, please use the Microsoft public newsgroups for ISA Server which would be the most relevant newsgroup for your question. http://www.microsoft.com/technet/community/newsgroups/server/isa.mspx Thanks for your understanding. Mike