Hi All, We’ve mixed environment with E2K3 (running on w2k3) and E2K7 (running on w2k8) in place. We’ve redirection in place and for some reason https://my.domain.com isn’t working but all the other ways it works fine like my.domain.com or http://my.domain.com or https://my.domain.com/exchange or https://my.domain.com/owa Any thoughts ?Regards, Pushkal MishrA

for mixed environment with exchange 2003/2007, you should do "A url redirection" from IIS to /exchange.

Hi, Besides Exadmin818's inputs, I'd like to know what is the error when you use https://my.domain.com Please verify if my.domain.com is pointing to the correct exchange server. Also please try to let me know if you have front-end. Do you have internet faced CAS server? Is it a CAS stand alone server? Outlook Web Access and Exchange 2007, 2003 and 2000 coexistence http://msexchangeteam.com/archive/2007/02/07/434523.aspx Regards, Xiu