Hello
We have read dozens of articles around coexistence, but all presume existing namespace and external access to Exchange. None seem to apply to our environment.
We are using Exchange 2007 SP3 CU10, No existing Single Space, No Load balancing. 4 CCR Clusters and 2 HUB\CAS Servers.
We are installing Exchange Server 2013 CU2, and will be using an internal PKI for Certificates.
Also will be using a BigIP for Load balancing 4x2013 CAS, a new single namespace of mail.company.int. And there will be no Internet access to Exchange 2013 CAS Services (only for SMTP).
Questions:
1) Do we still need to create a legacy.company.int namespace?
2) If so do we need to edit the namespaces on our Exchange 2007 CAS to use http://legacy.company.int/* Namespace?
3) Do Exchange Server 2013 Certificates need to be installed on the Exchange 2007 CAS?
4)Should the legacy.company.int namespace be in the same single certificate we use for Exchange Server 2007.
Thanks in advance, please if possible try not to point us back to another Web or Technet Article.
Lots of questions I know, but would greatly appreciate some clarity on this, we want to avoid any client issues.