HiI have E2K7 sp2 installed on W2K8 sp2...my owa Internal URL (https://servername.domain.local/owa) works fine with Form based Authentication.My external URL (https://mail.domainname.com/owa) does not >>>i keep getting 401 error after entering username password 3 times. I have checked and double checked all my redirects and they look ok...can anyone shed light or does anyone have a step by step procedure to do this properly?

Hi Hanif,Check the permissions on the virt directories http://msexchangetips.blogspot.com/2009/04/exchange-2007-outlook-web-access-did.htmlAlso see if you can access it with IP address. Also check if port 443 is opend on the FW.Raj

There is some mess with IIs settings, you just need to Remove IIS, reinstall IIS, same with Cas role.Cheers Nikhil Kalra

Nikhil,In case you reinstll the IIS , you need to reinstall the Exchange role as well, which might complicate the things.Raj