Hi Guys.....i have severals question regarding isa server Please help me and guide me in right way.... Q.1 my first question is in my windows 2003 server i create the one security group for isa servers user then i simply add users in this group after this when i define protocols and access poilcy then in applies to section i select user group of internet but some where i got problems specially in yahoo messager and hotmail pop3 outlook email download through microsoft outlook display error ISA REQUIRES AUTHENTICATION ...and in yahoo user are connecting to yahoo messenger but it will not go through yahoo rooms but when i use client address set for same policy then every thing is ok users are using chat rooms of yahoo and outlook express for hotmail email..... Q.2 i have a exchnage server now i want to enable microsoft Outlook Web Access My exchange server behind isa server i have a fix ip now how i can redirect outbound request to internal network means if user want to use outlook webaccess from internet then how i can do this .... Yours earliest responce appriciated Syed Ali ....