ev.owa bad request
thanks for the time. just wanted to pass this by the experts.
we are implementing exchange 2010 and are currently running 2007. owa extensions are version 2003 on the 2007 cas servers. no owa extensions placed on the 2010 cas boxes. in order to get EV ready for 2010 a couple things were required outlook 2007 on all EV servers and 2 powershell scripts setting permissions and disable throttling. I did the powershell scripts on the 2010 cas servers and it went through fine. I did not install any owa extensions.
while doing some work on the Exchange 2010 cas servers the EWS configs were changed and an iisreset was done. after that webmail failed. started to get a bad request error when trying to login to webmail. and then pointing to an ev.owa url https://webmail.contoso.com/OWA/ev.owa. the question I have is where did this url come from? is the Exchange 2010 cas box proxying to the Exchange 2007 box which has the 2003 owa extensions installed?
from this article: http://www.symantec.com/business/support/index?page=content&id=TECH78377 it shows where the footprints of ev.owa is on the http handler. but im not clear on what that means.
and on the EV server IIS is running and anonymous access is already set.
any insight and thoughts will be much appreciated.