Michel de Rooij has released the latest version of his Exchange Server 2010 SP1 network ports diagram.
For this version, I’ve included clients, 3rd party SMTP elements, UM and OCS/Lync components and a small list of how to change ports or fix dynamic port settings.

Download it free from Michel’s blog here.




Lovely…have this one on my wall next to the Microsoft architecture one! Very handy resources…
Thanks Paul!
Thanks for a fantastic diagram. How would it differ if the Exchange servers were in a child domain (and the users/mailboxes in a parent domain)? What about an Exchange resource forest?
The reason for asking as that we are working on a solution that may utilise one of the aforementioned deployment models and it would make our firewall config easier if we had the correct diagram.
For reasons I can’t go into there has to be a firewall between the physical location which contains users and the parent domain/accounts forest and the other location which will contain all the Exchange servers and 2 DCs for the child domain/resource forest.
Thanks in advance
Dae.