We are using Exchange 2013 and Exchange 2007 in a mix mode. Exchange will be upgraded to Exchange 2013. We use OWA on our internal network but now we have been asked to make it available from Internet so users can connect to email from anywhere. How do I do it? I know Microsoft had TMG/ISA server to use as a reverse proxy but it is not longer available. I want to configure Reverse proxy on DMZ so client can connect to it and authenticate.
Any suggestion or good configuration document would be nice?
Thanks,
HP