With on-premise exchange hybrid configuration, does port 443 have to be open inbound to our on premise server, or outbound to O365? The documentation is not clear:
https://technet.microsoft.com/en-us/library/hh534377(v=exchg.150).aspx
With on-premise exchange hybrid configuration, does port 443 have to be open inbound to our on premise server, or outbound to O365? The documentation is not clear:
https://technet.microsoft.com/en-us/library/hh534377(v=exchg.150).aspx