Greetings,
I have a customer who is looking to leverage the Spark Hybrid Services Calendar Connector to provide WebEx scheduling for O365 Web Apps users without the Productivity Tools. This customer will continue to have Exchange on-premise as well, and are planning on moving users up to O365 in a hybrid Exchange deployment. My question is in regards to the scale for the hybrid calendar service. It is stated in the deployment guide (here) that we can cluster up to two Expressway-C appliances, and when running the hybrid calendar connector it will support up to 15K users for on-premise Exchange or 1K users for O365. Are these numbers correct? And if so, what scale is supported when running Exchange in a hybrid deployment?
Thanks,
Darren
