In the old coexistence scenario between Exchange servers e.g. (2003 and 2007) the OWA is configured through powershell with URL redirection but in the new Exchange 2010/2013 the OWA redirection happens with Proxying but this operation for me is very blurry as I can't understand the exact mechanism of how does Exchange 2013 know the urls of Exchange 2010 ? Where does it read it from and what does proxy exactly means from technical prospective?
I have had couple of issues with redirection and was not able to find out how to get around it, how to reconfigure it or fix issues when things go wrong. I would appreciate if someone could provide an article on this or tell me how things work with OWA in coexistence scenarios .
Thanks a lot