Hi, In a similar way to how the following document covers recommended HTTP filters for Exchange: http://www.microsoft.com/technet/prodtechnol/isa/2004/plan/firewall-exch ange2003.mspx Has anyone seen the equivalent recommendations for Sharepoint? I know you have to be careful with high bit chars and normalisation, but not seen anything else discussed... By it's very nature, are Sharepoint HTTP filters harder to define compared to Exchange services??? Cheers JJ