Hi Tony,
This seems very interesting, but i don't understand all the settings, maybe you could explain some?
for example
Servername : mail.domain.com : is that the servername of the CSG or of the server with the OWA on it?
where does the SSLCertificatehash come from?
and in proxypass : http://exchangeserver : is this the url of the server running the OWA?
sorry to bother you with propably some trivial questions, but it's hard to find decent documentation about the http.conf file.
greetz,
vincent