Most of the time people like me from support background will be more interested to know the task performed by each of the Exchange services. Believe me, this had always helped us in finding out the right services to troubleshoot any given issue. As you all may know, with exchange 2016 we have just two roles (mailbox server role and edge transport role). Mailbox servers performs all the tasks including what hub transport and Client access servers were performing earlier. In Exchange 2016 mailbox role is responsible for the whole transport pipeline used for mail routing, mailbox databases that process/render & store data, client access services that accept client connections for all protocols, Unified Messaging (UM) services that provide voice mail and other telephony features to mailboxes. I had the below chart handy for a while to look in to any issues during the initial days of testing’s. I’ll go ahead and share it here for a one stop reference to any services in Exchange 2016 Mailbox role.
If you have any feedback or suggestions, please comment below.
Anoop Karikuzhiyil Babu
Former Microsoft Premier Unified Communication & Exchange Engineer