Hybrid deployment for MS Exchange is still the norm for very large environment for multiple reasons. Whether it is security, compliance or because some subsidiaries are on-premises when the group is online, hybrid environments are harder to manage because they involve multiple hybrid services such as ADFS, Azure AD, Exchange Edge and, sometimes, mailbox servers. And of course, all that needs to work perfectly with Office 365, communicating and integrating with all the other online services.
As if it wasn’t enough, your route to the cloud and your internal network also are at stake to deliver the best end-user experience.
Fortunately for you, complex environments are where GSX Gizmo excels to monitor & report on quality of service!