I tried reaching the same Outlook Web Access from outside of the netwrok through a Squid with no authentication at all and i get the same results, so i assume that ntlm authentication is not the case. I don't know if i am not really into the point. Correct me if disabling ntlm auth will do something else besides what i describe above. On Wed, May 18, 2011 at 12:01 PM, Eliezer Croitoru <eliezer@xxxxxxxxxxxxxxxxxx> wrote: > disable the NTLM auth for the exchange and local servers.. > > if they are protected with passwords already and they are internal\specific > use you can disable for these servers > the need for squid AUTHENTICATION. > > > On 18/05/2011 11:05, Stefanos Vizikidis wrote: > >> Hi! >> >> I have recently set up a Squid3 using also Kerberos and NTLM >> authentication for integration with Active Directory Services. >> My only problem is that the users cannot access the Outlook Web >> Access. They get two different login windows and then an Error Access >> Denied. >> I have seen that a lot of people have the same issue but i cannot find >> a solution as Exchange 2003 is rather old. >> Any help will be good. >> If anything needed from the logs i would be glad to post it. >> >> Thanks in advance. > >